H01T 13/56
Sparking plugs: characterised by having component parts which are easily assembled or
Official title: characterised by having component parts which are easily assembled or disassembled
H01T13/56 (Sparking plugs: characterised by having component parts which are easily assembled or) appears on 7 US grants and 6 published applications in this corpus.
Search patents in H01T- Granted patents
- 7
- Published applications
- 6
- Assignees
- 6
- Inventors
- 18
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 1 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Spark plug socket23 Sep 2025US 12,420,384 B2Milwaukee Electric Tool Corporation
- Igniter assembly with improved insulation and method of insulating the igniter assembly15 Sep 2020US 10,774,805 B2Tenneco Inc.
- Spark plug size adaptor assembly17 Mar 2020US 10,594,114 B2Swift Fuels, LLC
- Igniter assembly with improved insulation and method of insulating the igniter assembly30 Jul 2019US 10,364,788 B2Tenneco Inc.
- Spark plug having long service life28 Mar 2017US 9,608,412 B2Robert Bosch GmbH
- Spark Plug Socket2 Feb 2023US 2023/0034704 A1Milwaukee Electric Tool Corporation
- Igniter assembly with improved insulation and method of insulating the igniter assembly21 Nov 2019US 2019/0353136 A1Tenneco Inc.
- Spark plug assembly29 Nov 2018US 2018/0342855 A1Swift Fuels, LLC
- Igniter assembly with improved insulation and method of insulating the igniter assembly27 Sep 2018US 2018/0274514 A1Federal-Mogul Corporation
- Spark plug having long service life25 Sep 2014US 2014/0285083 A1Robert Bosch GmbH
Most cited
By later US patents