F23N 2235/14
Electromagnetically operated
Official title: electromagnetically operated
F23N2235/14 (Electromagnetically operated) appears on 435 US grants and 241 published applications in this corpus.
Search patents in F23N- Granted patents
- 435
- Published applications
- 241
- Assignees
- 207
- Inventors
- 715
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 7 | 0 |
| 1984 | 12 | 0 |
| 1985 | 9 | 0 |
| 1986 | 6 | 0 |
| 1987 | 10 | 0 |
| 1988 | 16 | 0 |
| 1989 | 15 | 0 |
| 1990 | 19 | 0 |
| 1991 | 16 | 0 |
| 1992 | 17 | 0 |
| 1993 | 12 | 0 |
| 1994 | 11 | 0 |
| 1995 | 14 | 0 |
| 1996 | 8 | 0 |
| 1997 | 6 | 0 |
| 1998 | 14 | 0 |
| 1999 | 22 | 0 |
| 2000 | 11 | 0 |
| 2001 | 11 | 3 |
| 2002 | 8 | 9 |
| 2003 | 7 | 8 |
| 2004 | 7 | 14 |
| 2005 | 8 | 7 |
| 2006 | 8 | 6 |
| 2007 | 2 | 11 |
| 2008 | 3 | 5 |
| 2009 | 4 | 10 |
| 2010 | 4 | 13 |
| 2011 | 4 | 12 |
| 2012 | 3 | 9 |
| 2013 | 5 | 12 |
| 2014 | 11 | 10 |
| 2015 | 9 | 11 |
| 2016 | 6 | 12 |
| 2017 | 16 | 10 |
| 2018 | 10 | 5 |
| 2019 | 10 | 16 |
| 2020 | 9 | 9 |
| 2021 | 9 | 13 |
| 2022 | 8 | 16 |
| 2023 | 7 | 6 |
| 2024 | 9 | 5 |
| 2025 | 6 | 2 |
| 2026 | 1 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Flameout protection system and heater24 Feb 2026US 12,560,332 B2Shinerich Industrial Ltd.
- Control systems and methods for cooktop appliances12 Aug 2025US 12,385,646 B2Haier US Appliance Solutions, Inc.
- Digital gas valve burner control systems and methods29 Jul 2025US 12,372,245 B2Midea Group Co., Ltd.
- Cooktop including a single input control of multiple heating elements8 Jul 2025US 12,352,449 B2Haier US Appliance Solutions, Inc.
- Furnace accessory27 May 2025US 12,313,302 B2
- Method of heating a steel semi-product in a heating furnace, and associated heating furnace3 Sep 2026US 2026/0259005 A1
- Carbon monoxide detector and safety switch30 Jul 2026US 2026/0218901 A1ZeroCo Systems, LLC
- Fuel system23 Apr 2026US 2026/0110432 A1Illinois Tool Works Inc.
- Systems and Methods for Measuring Throttle Position19 Mar 2026US 2026/0078839 A1Pittway Sarl
- One-piece combination valve, fuel system and temperature regulating control method thereof29 Jan 2026US 2026/0029059 A1Chant Heat Energy Science & Technology (Zhongshan) Co., LTD.
Most cited
By later US patents
- Integrated appliance control system186US 6,059,195 ATridelta Industries, Inc. · 2000
- Ignition boost and rectification flame detection circuit115US 6,222,719 B12001
- System and process for controlling the flow of air and fuel to a burner92US 4,645,450 AControl Techtronics, Inc. · 1987
- Two-stage gas valve with natural/LP gas conversion capability90US 5,413,141 AHoneywell Inc. · 1995
- Method for providing variable output gas-fired furnace with a constant temperature rise and efficiency88US 4,688,547 ACarrier Corporation · 1987