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US20100182131A1 - Apparatus having at least one packaging unit with an rfid chip which is used for radio-frequency identification, and method therefor - Google Patents

Apparatus having at least one packaging unit with an rfid chip which is used for radio-frequency identification, and method therefor Download PDF

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Publication number
US20100182131A1
US20100182131A1 US12/669,847 US66984708A US2010182131A1 US 20100182131 A1 US20100182131 A1 US 20100182131A1 US 66984708 A US66984708 A US 66984708A US 2010182131 A1 US2010182131 A1 US 2010182131A1
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US
United States
Prior art keywords
rfid chip
rfid
packaging
response signal
frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/669,847
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English (en)
Inventor
Eduard Balthes
Johannes Geser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boehringer Ingelheim International GmbH
Original Assignee
Boehringer Ingelheim International GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Boehringer Ingelheim International GmbH filed Critical Boehringer Ingelheim International GmbH
Assigned to BOEHRINGER INGELHEIM INTERNATIONAL GMBH reassignment BOEHRINGER INGELHEIM INTERNATIONAL GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BALTHES, EDUARD, GESER, JOHANNES
Publication of US20100182131A1 publication Critical patent/US20100182131A1/en
Abandoned legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0716—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising a sensor or an interface to a sensor
    • G06K19/0717—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising a sensor or an interface to a sensor the sensor being capable of sensing environmental conditions such as temperature history or pressure
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07771—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card the record carrier comprising means for minimising adverse effects on the data communication capability of the record carrier, e.g. minimising Eddy currents induced in a proximate metal or otherwise electromagnetically interfering object

Definitions

  • the invention relates to a device having at least one packaging unit with an RFID chip serving for radiofrequency identification, which comprises a switching circuit and an antenna structure, and a transmitting/receiving unit for sending a transmission signal and/or receiving a response signal from the RFID chip, the response signal being capable of evaluation by means of an evaluating unit connected to the transmitting/receiving unit.
  • the invention also relates to a method of identifying the content and/or condition of a packaging unit.
  • aluminium composite films or foils are often used, but these have the disadvantage that the outer packaging produced from them, for example so-called aluminium pouches, are non-transparent and it is not possible to identify the contents, e.g. To compare them with the information on the outer packaging, without destroying the outer packaging.
  • RFID chips of this kind can be detected using a scanning device.
  • a scanning device Depending on the type of transponder, in the simplest case it is possible to register the presence of the transponder, or to register a code which is transmitted back to the scanner from the transponder.
  • RFID chips of this kind are sufficiently well described in the specialist literature (e.g. K. Finkenzeller: RFID-Handbuch, 4th edition, published by Carl Hanser, Ober, ISBN 3-446-40398-1).
  • the aim of the invention is to provide a device and a method of the type mentioned hereinbefore which overcome(s) the above-mentioned disadvantages.
  • the aim is achieved by a device having at least one RFID chip enclosed by a metallic outer casing of a packaging unit and serving for radiofrequency identification, said RFID chip comprising a switching circuit and an antenna structure, and having a transmitting/receiving unit for sending a transmission signal and/or receiving a response signal from the RFID chip, the response signal being capable of evaluation by means of an evaluating unit connected to the transmitting/receiving unit and the RFID chip having an operating frequency that lies in a frequency band below a range of a blocking frequency which is determined by the conductivity of the metallic outer casing and its thickness.
  • the aim is also achieved by a method having the features of claim 16 .
  • the shielding from electromagnetic radiation in metallic conductive packaging, provided by the skin effect, has hitherto prevented the use of RFID chips in aluminium composite pouches for example.
  • the skin depth ⁇ or depth of penetration for electromagnetic radiation refers to the thickness of a metal layer at which the electromagnetic field is attenuated to the 1/e th value precisely by the skin effect, e being the Euler number.
  • the skin depth ⁇ is frequency-dependent when the material properties, such as the conductivity, remain the same, and rises sharply as the frequency falls. This very property of the skin effect can be used to overcome the previous difficulties in scanning an RFID chip within an aluminium pouch.
  • RFID chips which have an operating frequency LF-RFID (low frequency RFID) in the range from 20 to 500 kHz or an operating frequency HF-RFID (high frequency RFID) in the range from 3 to 30 MHz can be used successfully.
  • LF-RFID low frequency RFID
  • HF-RFID high frequency RFID
  • the choice of suitable RFID chips is made possible by calculating the material- and layer thickness-specific attenuation of the electromagnetic radiation of the transmitting/receiving unit.
  • the transmission power required of the transmitting/receiving unit can also be calculated and adjusted as necessary.
  • the RFID chip has a sensor that influences the response signal of the RFID chip.
  • the response signal of the RFID chip is influenced in its coding and/or response frequency by the sensor connected to the RFID chip or integrated in the RFID chip and received and evaluated by the transmitting/receiving unit and the evaluating unit. In this way the condition inside the metallic outer casing is detected and a corresponding signal is sent out.
  • Sensors of this kind may be for example temperature sensors or sensors that react to chemical changes and modify the response signal accordingly. As a result it is possible for example to determine the concentration of chemical substances.
  • the sensor of the RFID chip is in the form of a capacitor structure and the capacitance or change in capacitance of the capacitor structure modifies the response signal from the RFID chip which can be evaluated by a measuring arrangement associated with the evaluating unit.
  • the capacitor structure expediently comprises a dielectric, the dielectric constant ⁇ of which is dependent on the relative humidity (r.h.) or a gas concentration, for example because of its hygroscopic nature.
  • the response signal of the RFID chip is advantageously influenced in its coding and/or response frequency and received and evaluated by the transmitting/receiving unit that comprises the measuring arrangement. This makes it possible for example to produce a simple RFID chip that reacts to humidity, which can be used for non-destructive humidity measurement within the packaging unit.
  • a measuring arrangement for evaluating the response signal which is particularly suitable for the humidity evaluation described above comprises a measuring amplifier and a tuneable capacitance measuring bridge.
  • the response signal of the RFID chip is amplified by the measuring amplifier within the measuring arrangement and is determined by means of the tuneable capacitance measuring bridge by comparing with a reference capacitance within the capacitance measuring bridge. This makes it possible to carry out very sensitive humidity measurements with relatively high accuracy.
  • the accuracy is further increased if calibration is carried out before the RFID chip with the sensor or capacitor structure is packed into the packaging unit.
  • the RFID chip with the capacitor structure is subjected to specified humidity levels at a defined temperature in a dynamic vapour sorption scale (DVS), the response signal from the RFID chip is measured with the measuring arrangement at the different humidity levels and from this an inherent frequency dependent on the humidity is determined.
  • DVS dynamic vapour sorption scale
  • the capacitor that is to be calibrated represents the unknown capacitance in an oscillating circuit. The magnitudes sought are produced as the oscillating circuit goes out of tune as a function of the humidity.
  • the metal outer casing of a blister consists of an aluminium foil or film or a composite film consisting of at least one layer of aluminium and at least one other layer of plastics or paper.
  • the metallic outer casing has an aluminium film or layer that is 10 to 50 ⁇ m thick. On the one hand this provides a good diffusion barrier, so that the pharmaceutical active substance is correspondingly protected. On the other hand, RFID chips within the packaging unit can still be reliably addressed.
  • An alternative packaging envisages having the metal outer casing as a component of an outer packaging, as is the case for example with aluminium composite pouch bags.
  • the RFID chip is placed in the pouch bag as it is packed with the active substance contained in blister cards, for example, and the bag is then sealed.
  • the RFID chip is fixed within the outer packaging on a separate plastic card (inlay), to which it may be glued, for example.
  • inlay may be suitably labelled, for patient protection, and can easily be disposed of by the patient when the packaging unit is opened.
  • the RFID chip within the packaging is attached to the inside of the outer packaging.
  • the RFID chip may also be accurately positioned within the outer packaging.
  • the metal outer casing is part of an aluminium composite cover film of a blister card, the RFID chip being located on the blister card or within a cavity in the blister card and covered by the aluminium composite cover film.
  • the RFID chip is expediently attached, for example glued, to a separate plastic card (inlay) within the cavity in order to maintain its orientation within the cavity in the blister card relative to the cover film.
  • the scanner can read the RFID chip relatively reliably, thus reducing the number of error sources and shortening the measuring time. It is theoretically also conceivable for the RFID chip with the capacitor structure mentioned above to be stuck to the cover or base film of the blister card.
  • Typical aluminium composite films are produced for example from aluminium and a plastic.
  • materials that may be used for the plastic films include polyvinylchloride (PVC), cycloolefin copolymer (COC), polychlorotrifluoroethylene (PCFE), polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polycarbonate (PC), polyester (UP), polyacrylate, polyamide (PA) or other plastics.
  • PVC polyvinylchloride
  • COC cycloolefin copolymer
  • PCFE polychlorotrifluoroethylene
  • PE polyethylene
  • PP polypropylene
  • PET polyethylene terephthalate
  • PC polycarbonate
  • UP polyester
  • PA polyacrylate
  • PA polyamide
  • the cover film is made of aluminium and has a thickness of 10 to 80 microns, preferably 20 to 50 microns, particularly 30 to 40 microns.
  • the cover film is connected to the base film containing the cavities by means of a heat sealing lacquer so as to form a seal.
  • the base film consists, on the side in contact with the product, of a layer of PVC, PP, PE or the like with a thickness of between 10 and 200 microns, preferably between 15 and 50 microns, particularly between 20 and 40 microns.
  • This film is attached to an aluminium film with a thickness of preferably 30 to 60 microns, advantageously 35 to 50 microns.
  • Adjoining the aluminium film is a polyamide film with a thickness of between 10 and 40 microns, preferably 15 to 30 microns.
  • the PVC film on the side facing the product is replaced by a polypropylene film or the like.
  • the cover film consists of a 38 ⁇ m thick aluminium film and the heat sealing lacquer.
  • the base film is produced, on the side facing the pharmaceutical product, from a PVC film 30 ⁇ m thick, an adjacent 45 ⁇ m thick aluminium film and an outer 20 ⁇ m thick polyamide film.
  • the invention preferably envisages the use of the packaging unit with the features described hereinbefore for pharmaceutical products.
  • This, highly sensitive pharmaceutical products can be non-destructively identified in their packaging, which is advantageous particularly in terms of quality control, prevention of counterfeiting and the identification of clinical samples, i.e. medicaments produced in small production runs in which the identification of the contents is of particular importance.
  • the method described above for determining humidity can be used for the non-destructive and accurate measurement of the humidity in blisters, pouches, polymer blisters, bottles or in containers and/or packaging in general having volumes ranging from the ml range to larger containers. Because of the possibility of being able to measure a plurality of packaging units in parallel, this provides a fast method of measuring humidity. Besides water it is also possible to determine the concentration of other vapours and gases, while the sensitivity of the dielectric of the capacitor structure of the RFID chip must be matched to the substance that is to be measured.
  • the packaging may be the product itself or packaging means such as for example rolls of film, closure means containing desiccants and the like.
  • the packaging may be for example an aluminium film composite, although other packages are not excluded, as the method is intended primarily for measuring humidity without destroying or impairing the outer packaging.
  • One application of this method is in the development of packaging, for example within the scope of stability testing. It is also possible to carry out online monitoring during production, for example on individual complete blister cards for monitoring the initial moisture levels in the cavities.
  • FIG. 1 shows a schematic representation of the device according to the invention
  • FIG. 2 shows a schematic plan view of a blister card with an RFID chip for use in the device according to FIG. 1 ,
  • FIG. 3 shows a schematic representation of a frequency band having a range for a blocking frequency for a first embodiment of a metal outer casing
  • FIG. 4 shows a schematic representation of the frequency band having the range for a blocking frequency for a second embodiment of the metal outer casing.
  • a packaging unit 1 consists according to FIG. 1 of an outer packaging 10 having a metal outer casing 11 , which is made up of an aluminium film or a composite film, consisting of at least one aluminium layer and at least one other plastics or paper layer.
  • a so-called pouch bag is shown which has an aluminium composite film with a layer of aluminium about 20 ⁇ m thick.
  • a blister card 20 Inside the outer packaging 10 is a blister card 20 with a plurality of cavities 21 for holding pharmaceutical active substances, for example in the form of tablets or capsules.
  • Stuck to the blister card 20 is an RFID chip 30 which is activated and scanned by means of a transmitting/receiving unit 41 (scanner) outside the outer packaging 10 .
  • the transmitting/receiving unit 41 emits a transmission signal 42 and receives a response signal 43 from the RFID chip 30 , which is evaluated in an evaluating unit 44 comprising a measuring arrangement 40 , which is connected to the transmitting/receiving unit 41 .
  • the RFID chip 30 is provided in place of a cavity 21 on the blister card 20 , for example stuck on to the blister card 20 or incorporated in the blister when the cavities 21 are sealed.
  • the blister card 20 has an aluminium composite cover film which covers the RFID chip 30 and the cavities 21 .
  • the layer thickness of the aluminium layer in the cover film is about 45 ⁇ m.
  • the RFID chip 30 consists essentially of an antenna structure 31 in the form of a printed coil and a switching circuit 32 which, in the simplest case, merely sends back the response signal 43 when activated from outside. In more complex RFID chips 30 the switching circuit 32 , when activated, may also send back a code by means of which the contents of the blister card 20 can be scanned, for example.
  • the passive RFID chip 30 shown here has no battery.
  • the RFID chip 30 comprises a capacitor structure 33 the capacitance or change in capacitance of which modifies the response signal 43 of the RFID chip 30 .
  • the antenna structure 33 serves to charge up the capacitor structure 33 with the irradiated energy of the transmitting/receiving unit 41 and thereby provide enough energy to enable the actual switching circuit 32 of the RFID chip 30 to send its data back to the transmitting/receiving unit 41 .
  • the capacitor structure 33 has a dielectric the dielectric constant ⁇ of which is dependent on the relative humidity (r.h.) an oscillating circuit can thus be produced, the inherent oscillation of which is dependent on the value of the capacitance of the capacitor structure 33 and hence on the relative humidity (r.h.).
  • the change in the frequency of the response signal 43 is received by the transmitting/receiving unit 41 , amplified with a measuring amplifier of the measuring arrangement 40 and measured by means of a tuneable capacitance measuring bridge, from which finally the humidity in the packaging unit 1 can be determined.
  • the RFID chip 30 has an operating frequency which is in a frequency band 50 at which the frequency 51 is shown logarithmically, below a range of a blocking frequency 54 that is determined by the conductivity of the metallic outer casing 11 and its thickness. Below this blocking frequency 54 the frequency band 50 has a permeable range 52 and above it a blocking range 53 .
  • the result of the calculation shown in FIG. 3 was that, for an aluminium pouch with an aluminium film thickness of 20 ⁇ m, the pouch used blocks signals above a frequency of about 100 MHz, i.e. the electromagnetic field of the transmitter can be attenuated to values below the 1/e th of the irradiated value.
  • An operating frequency UHF-RFID 57 for the RFID chip 30 of more than 100 MHz is therefore unsuitable for scanning the information from a pouch of this kind.
  • the RFID chips 30 with an operating frequency LF-RFID 55 in the range from 30 kHz to 500 kHz or with an operating frequency HF-RFID 56 in the range from 3 MHz to 30 MHz, in particular, are suitable for scanning. In this frequency range, the aluminium pouch is permeable.
  • FIG. 4 shows the conditions in the frequency band 50 for an aluminium layer thickness of 45 ⁇ m, as used for example in an aluminium composite cover film for blister-coating blister cards 20 .
  • the range of the blocking frequency 54 is about 30 MHz. Above this frequency the aluminium composite cover film blocks the electromagnetic radiation, so that scanning is no longer possible. Below this blocking frequency 54 , the aluminium composite cover film of the blister card 20 is permeable.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Packages (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Bag Frames (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Details Of Aerials (AREA)
  • Near-Field Transmission Systems (AREA)
US12/669,847 2007-07-21 2008-07-16 Apparatus having at least one packaging unit with an rfid chip which is used for radio-frequency identification, and method therefor Abandoned US20100182131A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007034155A DE102007034155A1 (de) 2007-07-21 2007-07-21 Vorrichtung mit mindestens einer Verpackungseinheit mit einem zur Radiofrequenz-Identifikation dienenden RFID-Chip und Verfahren dazu
DE102007034155.7 2007-07-21
PCT/EP2008/059263 WO2009013189A1 (fr) 2007-07-21 2008-07-16 Dispositif comprenant au moins une unité d'emballage dotée d'une puce rfid servant à l'identification par radiofréquence et procédé correspondant

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/059263 A-371-Of-International WO2009013189A1 (fr) 2007-07-21 2008-07-16 Dispositif comprenant au moins une unité d'emballage dotée d'une puce rfid servant à l'identification par radiofréquence et procédé correspondant

Related Child Applications (1)

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US13/767,156 Continuation US8912891B2 (en) 2007-07-21 2013-02-14 Apparatus having at least one packaging unit with an RFID chip which is used for radio-frequency identification, and method therefor

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US20100182131A1 true US20100182131A1 (en) 2010-07-22

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US12/669,847 Abandoned US20100182131A1 (en) 2007-07-21 2008-07-16 Apparatus having at least one packaging unit with an rfid chip which is used for radio-frequency identification, and method therefor
US13/767,156 Active US8912891B2 (en) 2007-07-21 2013-02-14 Apparatus having at least one packaging unit with an RFID chip which is used for radio-frequency identification, and method therefor

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US (2) US20100182131A1 (fr)
EP (1) EP2171651B1 (fr)
JP (1) JP5357874B2 (fr)
AT (1) ATE524789T1 (fr)
DE (1) DE102007034155A1 (fr)
WO (1) WO2009013189A1 (fr)

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US20140262919A1 (en) * 2013-03-12 2014-09-18 Meps Real-Time, Inc. Passively enable a blister pack with wireless identification device
US20150116087A1 (en) * 2013-10-24 2015-04-30 Bell Helicopter Textron Inc. Estimating Thickness of a Material Layer on an Aircraft
US10108893B2 (en) * 2013-06-26 2018-10-23 Vypin, LLC Sensor array, method of making same, and related medication compliance monitoring techniques
US10108892B2 (en) 2013-06-26 2018-10-23 Vypin, LLC Wireless tag apparatus and related medication compliance monitoring techniques
US10572700B2 (en) 2013-06-26 2020-02-25 Vypin, LLC Wireless asset location tracking system and related techniques

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WO2011154276A1 (fr) * 2010-06-07 2011-12-15 Boehringer Ingelheim International Gmbh Système de sécurité muni d'un transpondeur et d'un lecteur de système rfid
GB201218140D0 (en) * 2012-10-10 2012-11-21 Future Technology Uk Ltd Devices for use with blister packs
EP3032649A4 (fr) * 2013-08-09 2016-07-20 Ricoh Co Ltd Boîtier avec étiquette d'identification par radiofréquence ainsi que procédé de fabrication de ce boîtier
ES2811266T3 (es) 2015-02-03 2021-03-11 Boehringer Ingelheim Int Procedimiento y dispositivo para la determinación del contenido de agua

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JP2010534363A (ja) 2010-11-04
US8912891B2 (en) 2014-12-16
WO2009013189A1 (fr) 2009-01-29
ATE524789T1 (de) 2011-09-15
JP5357874B2 (ja) 2013-12-04
DE102007034155A1 (de) 2009-01-22
EP2171651B1 (fr) 2011-09-14
US20130162408A1 (en) 2013-06-27
EP2171651A1 (fr) 2010-04-07

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