H01T 13/34
Characterised by the mounting of electrodes in insulation
Official title: characterised by the mounting of electrodes in insulation, e.g. by embedding
H01T13/34 (Characterised by the mounting of electrodes in insulation) appears on 177 US grants and 178 published applications in this corpus.
Search patents in H01T- Granted patents
- 177
- Published applications
- 178
- Assignees
- 32
- Inventors
- 264
- Latest grant
- 5 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 1 |
| 2002 | 3 | 2 |
| 2003 | 1 | 3 |
| 2004 | 4 | 0 |
| 2005 | 0 | 6 |
| 2006 | 3 | 4 |
| 2007 | 1 | 3 |
| 2008 | 3 | 1 |
| 2009 | 1 | 2 |
| 2010 | 1 | 6 |
| 2011 | 3 | 2 |
| 2012 | 5 | 0 |
| 2013 | 3 | 10 |
| 2014 | 4 | 6 |
| 2015 | 15 | 8 |
| 2016 | 7 | 14 |
| 2017 | 14 | 19 |
| 2018 | 21 | 20 |
| 2019 | 17 | 17 |
| 2020 | 15 | 14 |
| 2021 | 11 | 5 |
| 2022 | 2 | 5 |
| 2023 | 7 | 10 |
| 2024 | 13 | 11 |
| 2025 | 5 | 4 |
| 2026 | 0 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Spark plug with electrode head shielding element5 Aug 2025US 12,381,374 B2EcoPower Spark, LLC
- Spark plug22 Jul 2025US 12,368,285 B2Niterra Co., Ltd.
- Spark plug3 Jun 2025US 12,322,931 B2Niterra Co., Ltd.
- Spark plug22 Apr 2025US 12,283,796 B2Niterra Co., Ltd.
- Prechamber spark plug having accurately adjustable electrode gap, and associated method15 Apr 2025US 12,278,465 B2Robert Bosch GmbH
- Spark plug with tapered breathing space3 Sep 2026US 2026/0261100 A1
- Spark plug resistor element arrangement, method for producing same, and spark plug for an internal combustion engine27 Aug 2026US 2026/0254205 A1
- Spark plug9 Jul 2026US 2026/0196808 A1
- Traveling spark igniter5 Mar 2026US 2026/0066621 A1Champion Aerospace Inc.
- Spark plug1 Jan 2026US 2026/0005493 A1Niterra Co., Ltd.
Most cited
By later US patents
- Spark plug and mounting structure of the same61US 6,617,769 B2Ngk Spark Plug Co., Ltd. · 2003
- Spark plug and method for assembling a spark plug45US 5,159,233 A1992
- Resistor built-in spark plug21US 3,967,230 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1976
- Sparkplug for internal combustion engine21US 4,406,968 ARobert Bosch GmbH · 1983
- Spark plug19US 6,191,525 B1Ngk Spark Plug Co., Ltd. · 2001