DE19907596A1 - Device which detects position of cooking vessel and guarantees that cooking vessel and heating element automatically agree has heating element slid under cooking vessel or cooking vessel - Google Patents
Device which detects position of cooking vessel and guarantees that cooking vessel and heating element automatically agree has heating element slid under cooking vessel or cooking vesselInfo
- Publication number
- DE19907596A1 DE19907596A1 DE1999107596 DE19907596A DE19907596A1 DE 19907596 A1 DE19907596 A1 DE 19907596A1 DE 1999107596 DE1999107596 DE 1999107596 DE 19907596 A DE19907596 A DE 19907596A DE 19907596 A1 DE19907596 A1 DE 19907596A1
- Authority
- DE
- Germany
- Prior art keywords
- cooking vessel
- heating element
- cookware
- guarantees
- slid under
- 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.)
- Withdrawn
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 29
- 238000010411 cooking Methods 0.000 title abstract description 11
- 230000003287 optical effect Effects 0.000 claims abstract description 3
- 230000001939 inductive effect Effects 0.000 claims abstract 2
- 239000002241 glass-ceramic Substances 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 244000144980 herd Species 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
- H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/10—Tops, e.g. hot plates; Rings
- F24C15/102—Tops, e.g. hot plates; Rings electrically heated
- F24C15/103—Tops, e.g. hot plates; Rings electrically heated being movable or rotatable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/10—Tops, e.g. hot plates; Rings
- F24C15/102—Tops, e.g. hot plates; Rings electrically heated
- F24C15/105—Constructive details concerning the regulation of the temperature
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
- H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
- H05B3/746—Protection, e.g. overheat cutoff, hot plate indicator
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
- H05B2213/05—Heating plates with pan detection means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Cookers (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung, die gewährleistet, daß sich eine Herdplatte immer genau unter dem Kochgeschirr befindet.The invention relates to a device that ensures that a hob is always exactly under the cookware.
Um die beim Kochen eingesetzte Energie optimal auszunutzen und aus Sicherheitsgründen sollte sich die bei einem Herd beheizte Fläche immer genau unter dem momentan benutzten Kochgeschirr befinden.In order to optimally use the energy used in cooking and for safety reasons the area heated by a stove is always exactly under the cookware currently in use are located.
Die ersten Herde mit Glaskeramik-Kochfeld waren hinsichtlich der Flexibilität des beheizten Bereiches noch genauso unflexibel wie Herde mit herkömmlichen Heizplatten. In der zweiten Generation konnten dann Heizspiralen entsprechend der Form und Größe des Kochgeschirrs zu- oder abgeschaltet werden. Die neuen Elektroherde mit Glaskeramik-Kochfeld schalten selbstständig Heizspiralen zu oder ab. Die neueste Entwicklung im Bereich der Elektroherde sind Induktionsherde.The first cookers with glass ceramic cooktop were heated in terms of flexibility Area is just as inflexible as cookers with conventional heating plates. In the second Generation could then add heating coils according to the shape and size of the cookware or be switched off. The new electric cookers with glass ceramic cooktop switch independently Heating coils up or down. The latest development in the field of electric cookers are induction cookers.
Aus dem oben Gesagten geht hervor, daß sich die derzeit auf dem Markt befindlichen Herde mit Glaskeramik-Kochfeld zwar der Form und Größe des verwendeten Kochgeschirrs anpassen, aber nicht auf Ortsveränderungen des Kochgeschirrs (durch ungenaues Aufstellen oder Verrutschen beim Rühren) reagieren können. Induktionsherde können nur mit dafür geeignetem Kochgeschirr betrieben werden.From the above it is clear that the herds currently on the market include Adjust the ceramic hob to the shape and size of the cookware used, but not to changes in the location of the cookware (due to inaccurate installation or slipping when Stirring) can react. Induction cookers can only be operated with suitable cookware.
Die selbstfokusierende Herdplatte soll gewährleisten, daß die Bodenplatte des Kochgeschirrs und die Herdplatte laufend zur Deckung gebracht werden, bzw. daß sich die Herdplatte abschaltet, wenn Kochgeschirr und Herdplatte soweit auseinander sind, daß eine Nachführung nicht mehr möglich ist.The self-focusing hob is designed to ensure that the bottom plate of the cookware and the Stove are constantly brought to cover, or that the stove turns off when Cookware and hob are so far apart that tracking is no longer possible.
Diese Aufgabe wird dadurch gelöst, daß die Position des Kochgeschirrs durch Sensoren ermittelt wird. Eine elektronische Schaltung analysiert die Position von Kochgeschirr und Heizelement zueinander und veranlaßt, daß die Mechanik das Heizelement bzw. das Kochgeschirr so verschiebt, daß beide wieder zur Deckung gebracht werden.This object is achieved in that the position of the cookware is determined by sensors becomes. An electronic circuit analyzes the position of the cookware and heating element to each other and causes the mechanics to move the heating element or cookware so that both are brought back to cover.
Die Vorteile dieser Erfindung liegen zum Einen im Bereich der optimalen Energieausnützung. Ein weiterer, nicht zu unterschätzender Gesichtspunkt, ist die Sicherheit. Eine heiße Herdplatte, die nicht durch einen Topf bedeckt wird, stellt eine Verletzungsgefahr dar. Außerdem können sich Topflappen oder ähnliches an solchen unbedeckten Herdplatten entzünden. The advantages of this invention lie on the one hand in the area of optimal energy utilization. Another aspect that should not be underestimated is security. A hot hob that not covered by a saucepan poses a risk of injury Ignite potholders or the like on such uncovered hotplates.
Bei einem Elektroherd mit Glaskeramik-Kochfeld befindet sich unter der Glaskeramikplatte(in der Übersicht nicht dargestellt) ein Heizelement (1), bestehend aus Trägerplatte, Heizspirale und Isoliermaterial in diesem Heizelement sind bei der selbstfokusierenden Herdplatte in zwei rechtwinklig zueinander stehenden Achsen Sensoren (2) angebracht, die die relative Position und den Durchmesser des Kochgeschirrs an die Steuerelektronik (3) übermitteln.In the case of an electric cooker with a glass ceramic hob, there is a heating element ( 1 ) underneath the glass ceramic plate (not shown in the overview), consisting of a support plate, heating coil and insulating material in this heating element. In the self-focusing stove plate, sensors ( 2 ) are at right angles to each other. attached, which transmit the relative position and diameter of the cookware to the control electronics ( 3 ).
Das Heizelement (1) selbst ist in zwei zueinander senkrecht stehenden Richtungen (parallel zur Ausrichtung der Sensoren (2) beweglich gelagert. Aufgrund der relativen Position zwischen Kochgeschirr und Heizelment (1) veranlaßt die Steuerelektronik (3) einen, oder beide der Motoren (4), das Heizelement (1) über die Mechanik (5) so zu verschieben, daß Kochgeschirr und beheizte Fläche zur Deckung gebracht werden. Dabei wird über ein, oder mehrere Relais (6) die Größe der beheizten Fläche durch Zu- oder Abschaltung von einer, oder meheren Heizspiralen der Größe des Kochgeschirrs angepaßt. Durch diese Relais(6) werden alle Heizspiralen abgeschaltet, wenn das Kochgeschirr entfernt, oder so weit verschoben wird, daß das Heizelement nicht mehr nachgeführt werden kann. Wird das Kochgeschirr innerhalb eines bestimmten Zeitintervalls nach der Entfernung wieder auf den Herd gestellt, so werden die Heizspiralen wieder eingeschaltet. Nach Verstreichen des Zeitintervalls muß der Herd aus Sicherheitsgründen wieder neu über den Stufenregler (7) eingeschaltet werden.The heating element ( 1 ) itself is movably mounted in two mutually perpendicular directions (parallel to the alignment of the sensors ( 2 ). Due to the relative position between the cookware and the heating element ( 1 ), the control electronics ( 3 ) cause one or both of the motors ( 4 ) to move the heating element ( 1 ) via the mechanism ( 5 ) in such a way that cookware and the heated surface are brought in. The size of the heated surface is switched on or off by one or more relays ( 6 ) By means of these relays ( 6 ), all heating spirals are switched off when the cookware is removed or moved so far that the heating element can no longer be moved. If the cookware is moved within a certain time interval after the If the distance is put back on the stove, the heating coils are switched on again after the time interval has elapsed s For safety reasons, the stove must be switched on again using the step controller ( 7 ).
Bei dem realisierten Prototyp wurde das Heizelement (1) eines serienmäßigen Herdes mit zwei Heizspiralen verwendet.The heating element ( 1 ) of a standard stove with two heating spirals was used in the prototype.
Als Sensoren (2) zur Ermittlung der relativen Position zwischen Kochgeschirr und Heizelement wurden Spulen verwendet, die die Position des Kochgeschirrs auf induktivem Weg messen. Die Aufgabe der Steuerelektronik (3) wurde auf einenm PC unter Turbo Pascal realisiert. Als Motoren (4) zur Verschiebung des Heizelements wurden Schrittmotoren verwendet. Die Mechanik (5) zur Verschiebung des Heizelements besteht aus je einer Gewindestange für jede Bewegungsrichtung.Coils were used as sensors ( 2 ) to determine the relative position between the cookware and the heating element, which measure the position of the cookware by induction. The task of the control electronics ( 3 ) was realized on a PC under Turbo Pascal. Stepper motors were used as motors ( 4 ) for moving the heating element. The mechanism ( 5 ) for moving the heating element consists of a threaded rod for each direction of movement.
Die selbstfokusierende Herdplatte ist nicht auf Elektroherde mit Glaskeramik-Kochfeld beschränkt. Es können auch Gas- oder Strahlungsheizelemente und Primärwicklungen von Induktionsherden unter dem Kochgeschirr verschoben werden.The self-focusing hob is not limited to electric cookers with a ceramic hob. Gas or radiant heating elements and primary windings from induction cookers can also be used be moved under the cookware.
Die Sensoren müssen nicht zwangsläufig induktiv arbeiten. Es sind auch optische Sensoren denkbar. Für einen Einsatz im Alltagsbetrieb ist ein PC zu teuer und zu groß. Die Steuerung müßte in diesem Fall durch entsprechende elektronische Schaltungen (bei Serienproduktion auch ICs) realisiert werden.The sensors do not necessarily have to work inductively. Optical sensors are also conceivable. A PC is too expensive and too large for everyday use. The control should be in this Case realized by appropriate electronic circuits (also ICs in series production) become.
Als Antrieb für die Mechanik können auch herkömmliche Elektromotoren verwendet werden. Die Größe der Verschiebung kann auch über die Dauer des Einschaltens bestimmt werden. Zur Verschiebung des Heizelements können neben Gewindestangen auch Seilzüge, Keil- oder Zahnriemen verwendet werden.Conventional electric motors can also be used to drive the mechanics. The The size of the shift can also be determined via the duration of switching on. In addition to threaded rods, cables, wedge or can be used to move the heating element Timing belts can be used.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1999107596 DE19907596A1 (en) | 1999-02-22 | 1999-02-22 | Device which detects position of cooking vessel and guarantees that cooking vessel and heating element automatically agree has heating element slid under cooking vessel or cooking vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1999107596 DE19907596A1 (en) | 1999-02-22 | 1999-02-22 | Device which detects position of cooking vessel and guarantees that cooking vessel and heating element automatically agree has heating element slid under cooking vessel or cooking vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19907596A1 true DE19907596A1 (en) | 2000-08-24 |
Family
ID=7898452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1999107596 Withdrawn DE19907596A1 (en) | 1999-02-22 | 1999-02-22 | Device which detects position of cooking vessel and guarantees that cooking vessel and heating element automatically agree has heating element slid under cooking vessel or cooking vessel |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19907596A1 (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10206062A1 (en) * | 2002-02-08 | 2003-08-28 | Ego Elektro Geraetebau Gmbh | Fastening device for flat electrical heating devices |
| FR2863039A1 (en) * | 2003-11-27 | 2005-06-03 | Brandt Ind | Heating procedure for cooking vessel placed on cooker hob has series of inductors that detect presence of vessel and switch on appropriate number of heaters |
| WO2008101766A1 (en) * | 2007-02-21 | 2008-08-28 | BSH Bosch und Siemens Hausgeräte GmbH | Hob with a movable heating element |
| WO2011012418A1 (en) | 2009-07-29 | 2011-02-03 | BSH Bosch und Siemens Hausgeräte GmbH | Hotplate having at least two heating zones |
| ITTO20090991A1 (en) * | 2009-12-15 | 2011-06-16 | Indesit Co Spa | INDUCTION HOB WITH MOBILE INDUCTORS |
| WO2013088306A1 (en) * | 2011-12-12 | 2013-06-20 | BSH Bosch und Siemens Hausgeräte GmbH | Cooking hob device having movable heating elements |
| ITAN20120109A1 (en) * | 2012-08-22 | 2014-02-23 | Stefania Romagnoli | HOB WITH ADJUSTABLE HEATING ELEMENTS |
| US20140231413A1 (en) * | 2011-11-09 | 2014-08-21 | Electrolux Home Products Corporation N.V. | Cooking hob, household appliance and method of operating an cooking hob |
| US10605464B2 (en) | 2012-10-15 | 2020-03-31 | Whirlpool Corporation | Induction cooktop |
| EP3720245A1 (en) * | 2019-04-04 | 2020-10-07 | Vestel Elektronik Sanayi ve Ticaret A.S. | Induction cooking device and method |
| US10893579B2 (en) | 2017-07-18 | 2021-01-12 | Whirlpool Corporation | Method for operating an induction cooking hob and cooking hob using such method |
| US10993292B2 (en) | 2017-10-23 | 2021-04-27 | Whirlpool Corporation | System and method for tuning an induction circuit |
| US20210199304A1 (en) * | 2017-11-20 | 2021-07-01 | BSH Hausgeräte GmbH | Method for installing a cooking system |
| US11140751B2 (en) | 2018-04-23 | 2021-10-05 | Whirlpool Corporation | System and method for controlling quasi-resonant induction heating devices |
| US11212880B2 (en) | 2012-10-15 | 2021-12-28 | Whirlpool Emea S.P.A. | Induction cooking top |
| US12302478B2 (en) | 2018-04-23 | 2025-05-13 | Whirlpool Corporation | Control circuits and methods for distributed induction heating devices |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2315819A1 (en) * | 1975-06-27 | 1977-01-21 | Orega Electro Mecanique | Electromagnetic induction heater for culinary use - uses rectangular windings arranged on cylindrical support with adjacent windows producing phase opposed fields |
| DE3039220A1 (en) * | 1980-10-17 | 1982-05-19 | Neff - Werke, Carl Neff Gmbh, 7518 Bretten | Cooking hob for incorporation in kitchen work plate - has flat heating elements on supports, pivotally mounted w.r.t. glass-ceramic hob |
| DE3533997A1 (en) * | 1985-09-24 | 1987-03-26 | Licentia Gmbh | Cooking top with a number of cooking points |
| DE69106145T2 (en) * | 1990-11-09 | 1995-05-04 | Europ Equip Menager | COOKING HOB WITH INDUCTION HEATING. |
| DE19603845A1 (en) * | 1996-02-05 | 1997-08-07 | Ego Elektro Blanc & Fischer | Electric radiant heater with an active sensor for cooking vessel detection |
-
1999
- 1999-02-22 DE DE1999107596 patent/DE19907596A1/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2315819A1 (en) * | 1975-06-27 | 1977-01-21 | Orega Electro Mecanique | Electromagnetic induction heater for culinary use - uses rectangular windings arranged on cylindrical support with adjacent windows producing phase opposed fields |
| DE3039220A1 (en) * | 1980-10-17 | 1982-05-19 | Neff - Werke, Carl Neff Gmbh, 7518 Bretten | Cooking hob for incorporation in kitchen work plate - has flat heating elements on supports, pivotally mounted w.r.t. glass-ceramic hob |
| DE3533997A1 (en) * | 1985-09-24 | 1987-03-26 | Licentia Gmbh | Cooking top with a number of cooking points |
| DE69106145T2 (en) * | 1990-11-09 | 1995-05-04 | Europ Equip Menager | COOKING HOB WITH INDUCTION HEATING. |
| DE19603845A1 (en) * | 1996-02-05 | 1997-08-07 | Ego Elektro Blanc & Fischer | Electric radiant heater with an active sensor for cooking vessel detection |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10206062A1 (en) * | 2002-02-08 | 2003-08-28 | Ego Elektro Geraetebau Gmbh | Fastening device for flat electrical heating devices |
| US8742299B2 (en) | 2003-11-27 | 2014-06-03 | Fagorbrandt Sas | Method for heating a container placed on a cooktop by heating means associated to inductors |
| US7759616B2 (en) | 2003-11-27 | 2010-07-20 | Brandt Industries | Method for heating a container placed on a cooktop by heating means associated to inductors |
| FR2863039A1 (en) * | 2003-11-27 | 2005-06-03 | Brandt Ind | Heating procedure for cooking vessel placed on cooker hob has series of inductors that detect presence of vessel and switch on appropriate number of heaters |
| WO2008101766A1 (en) * | 2007-02-21 | 2008-08-28 | BSH Bosch und Siemens Hausgeräte GmbH | Hob with a movable heating element |
| ES2319031A1 (en) * | 2007-02-21 | 2009-05-01 | Bsh Electrodomesticos España, S.A. | COOKING FIELD WITH A MOVABLE HEATING ELEMENT. |
| ES2319031B1 (en) * | 2007-02-21 | 2010-02-03 | Bsh Electrodomesticos España, S.A. | COOKING FIELD WITH A MOVABLE HEATING ELEMENT. |
| DE112008000413B4 (en) * | 2007-02-21 | 2014-07-03 | BSH Bosch und Siemens Hausgeräte GmbH | Hob with a movable heating element |
| WO2011012418A1 (en) | 2009-07-29 | 2011-02-03 | BSH Bosch und Siemens Hausgeräte GmbH | Hotplate having at least two heating zones |
| ITTO20090991A1 (en) * | 2009-12-15 | 2011-06-16 | Indesit Co Spa | INDUCTION HOB WITH MOBILE INDUCTORS |
| US20140231413A1 (en) * | 2011-11-09 | 2014-08-21 | Electrolux Home Products Corporation N.V. | Cooking hob, household appliance and method of operating an cooking hob |
| WO2013088306A1 (en) * | 2011-12-12 | 2013-06-20 | BSH Bosch und Siemens Hausgeräte GmbH | Cooking hob device having movable heating elements |
| ITAN20120109A1 (en) * | 2012-08-22 | 2014-02-23 | Stefania Romagnoli | HOB WITH ADJUSTABLE HEATING ELEMENTS |
| US10605464B2 (en) | 2012-10-15 | 2020-03-31 | Whirlpool Corporation | Induction cooktop |
| US11212880B2 (en) | 2012-10-15 | 2021-12-28 | Whirlpool Emea S.P.A. | Induction cooking top |
| US11655984B2 (en) | 2012-10-15 | 2023-05-23 | Whirlpool Corporation | Induction cooktop |
| US10893579B2 (en) | 2017-07-18 | 2021-01-12 | Whirlpool Corporation | Method for operating an induction cooking hob and cooking hob using such method |
| US10993292B2 (en) | 2017-10-23 | 2021-04-27 | Whirlpool Corporation | System and method for tuning an induction circuit |
| US20210199304A1 (en) * | 2017-11-20 | 2021-07-01 | BSH Hausgeräte GmbH | Method for installing a cooking system |
| US11140751B2 (en) | 2018-04-23 | 2021-10-05 | Whirlpool Corporation | System and method for controlling quasi-resonant induction heating devices |
| US12245348B2 (en) | 2018-04-23 | 2025-03-04 | Whirlpool Corporation | System and method for controlling quasi-resonant induction heating devices |
| US12302478B2 (en) | 2018-04-23 | 2025-05-13 | Whirlpool Corporation | Control circuits and methods for distributed induction heating devices |
| EP3720245A1 (en) * | 2019-04-04 | 2020-10-07 | Vestel Elektronik Sanayi ve Ticaret A.S. | Induction cooking device and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8139 | Disposal/non-payment of the annual fee |