H01T 1/22
By the shape or the composition of the electrodes
Official title: by the shape or the composition of the electrodes
H01T1/22 (By the shape or the composition of the electrodes) appears on 77 US grants and 45 published applications in this corpus.
Search patents in H01T- Granted patents
- 77
- Published applications
- 45
- Assignees
- 43
- Inventors
- 141
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 6 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 3 | 5 |
| 2015 | 1 | 3 |
| 2016 | 6 | 5 |
| 2017 | 4 | 2 |
| 2018 | 1 | 5 |
| 2019 | 8 | 5 |
| 2020 | 3 | 4 |
| 2021 | 3 | 3 |
| 2022 | 3 | 1 |
| 2023 | 3 | 2 |
| 2024 | 1 | 3 |
| 2025 | 2 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Spark plug having a small inter-electrode distance and an at least partly negative spark position9 Jun 2026US 12,651,891 B2Robert Bosch GmbH
- Three-dimensional graphene network electrode for a high-power switch circuit21 Oct 2025US 12,451,672 B2The Boeing Company
- Transient voltage protection device29 Jul 2025US 12,374,867 B2TDK Corporation
- Electrode tip assembly for a spark plug and method of manufacturing the same13 Feb 2024US 11,901,705 B2Federal-Mogul Ignition Company
- Over-voltage protection device28 Nov 2023US 11,832,371 B2Inpaq Technology Co., Ltd.
- Electrode with elongated elevation or groove, and a spark plug comprising such an electrode as a ground electrode23 Jul 2026US 2026/0213499 A1Robert Bosch GmbH
- Spark plug having a small inter-electrode distance and an at least partly negative spark position14 Nov 2024US 2024/0380188 A1Robert Bosch GmbH
- Three-dimensional graphene network electrode for a high-power switch circuit12 Sep 2024US 2024/0305068 A1The Boeing Company
- Transient voltage protection device15 Aug 2024US 2024/0275135 A1TDK Corporation
- Electrode tip assembly for a spark plug and method of manufacturing the same22 Jun 2023US 2023/0198232 A1Federal-Mogul Ignition Company
Most cited
By later US patents
- Gas-discharge surge arrester26US 4,433,354 ASiemens Aktiengesellschaft · 1984
- Gas filled surge arrester20US 4,104,693 AReliable Electric Company · 1978
- Surge arrester17US 4,266,260 ASiemens Aktiengesellschaft · 1981
- Gas filled surge arrester17US 4,491,893 AReliance Electric Company · 1985
- Surge arrester with a gas-filled housing12US 4,493,004 ASiemens Aktiengesellschaft · 1985