H05B 3/74
Non-metallic plates
Official title: Non-metallic plates {, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits}
H05B3/74 (Non-metallic plates) appears on 724 US grants and 561 published applications in this corpus.
Search patents in H05B- Granted patents
- 724
- Published applications
- 561
- Assignees
- 214
- Inventors
- 1,119
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 8 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 10 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 8 | 0 |
| 1985 | 10 | 0 |
| 1986 | 5 | 0 |
| 1987 | 8 | 0 |
| 1988 | 15 | 0 |
| 1989 | 12 | 0 |
| 1990 | 12 | 0 |
| 1991 | 21 | 0 |
| 1992 | 11 | 0 |
| 1993 | 20 | 0 |
| 1994 | 11 | 0 |
| 1995 | 13 | 0 |
| 1996 | 14 | 0 |
| 1997 | 4 | 0 |
| 1998 | 12 | 0 |
| 1999 | 31 | 0 |
| 2000 | 40 | 0 |
| 2001 | 37 | 16 |
| 2002 | 31 | 30 |
| 2003 | 17 | 31 |
| 2004 | 25 | 39 |
| 2005 | 20 | 35 |
| 2006 | 20 | 23 |
| 2007 | 10 | 23 |
| 2008 | 14 | 20 |
| 2009 | 13 | 16 |
| 2010 | 13 | 13 |
| 2011 | 10 | 11 |
| 2012 | 8 | 7 |
| 2013 | 11 | 12 |
| 2014 | 8 | 12 |
| 2015 | 12 | 18 |
| 2016 | 4 | 12 |
| 2017 | 6 | 20 |
| 2018 | 19 | 24 |
| 2019 | 17 | 27 |
| 2020 | 17 | 34 |
| 2021 | 16 | 31 |
| 2022 | 24 | 31 |
| 2023 | 25 | 33 |
| 2024 | 22 | 21 |
| 2025 | 21 | 11 |
| 2026 | 9 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fault reset system for an appliance22 Sep 2026US 12,742,554 B2Haier US Appliance Solutions, Inc.
- Cooking appliance comprising a radiant heater15 Sep 2026US 12,736,225 B2Eika, S.Coop.
- Cooktop apparatus and method of cleaning25 Aug 2026US 12,716,591 B2Midea Group Co., Ltd.
- Cooktop and resilient element support28 Jul 2026US 12,693,025 B2Haier US Appliance Solutions, Inc.
- Food warming pad14 Jul 2026US 12,684,658 B1Guangdong Willing Technology Corporation
- Cooking appliance24 Sep 2026US 2026/0292940 A1LG Electronics Inc.
- Laboratory device having a heating function17 Sep 2026US 2026/0273533 A1IKA-Werke GmbH & Co. KG
- Heating tray6 Aug 2026US 2026/0224067 A1OnKey Electronic Technology Co.,Ltd
- Cooking appliance and method for closed-loop cooking operation23 Jul 2026US 2026/0210559 A1Haier US Appliance Solutions, Inc.
- Food warming pad16 Jul 2026US 2026/0206100 A1Guangdong Willing Technology Corporation
Most cited
By later US patents
- Touch switch with flexible, intermediate conductive spacer as sensor button194US 5,917,165 AE. G. O. Elektro-Geraetebau GmbH · 1999
- Beverage warmer90US 4,523,083 AHamilton-Dunn Research Co. · 1985
- Automatic heating assembly with selective heating71US 5,658,478 A1997
- Temperature limiting arrangement for a glass-ceramic cooktop appliance66US 4,740,664 AGeneral Electric Company · 1988
- Frame for plates of glass, vitreous ceramic or similar material, particularly for cooker hobs62US 4,453,533 ASchott Glaswerke · 1984