H01T 13/02
Details
H01T13/02 (Details) appears on 815 US grants and 578 published applications in this corpus.
Search patents in H01T- Granted patents
- 815
- Published applications
- 578
- Assignees
- 195
- Inventors
- 1,130
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 8 | 0 |
| 1978 | 8 | 0 |
| 1979 | 4 | 0 |
| 1980 | 8 | 0 |
| 1981 | 8 | 0 |
| 1982 | 5 | 0 |
| 1983 | 8 | 0 |
| 1984 | 8 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 7 | 0 |
| 1989 | 12 | 0 |
| 1990 | 10 | 0 |
| 1991 | 9 | 0 |
| 1992 | 12 | 0 |
| 1993 | 12 | 0 |
| 1994 | 14 | 0 |
| 1995 | 12 | 0 |
| 1996 | 9 | 0 |
| 1997 | 17 | 0 |
| 1998 | 15 | 0 |
| 1999 | 17 | 0 |
| 2000 | 9 | 0 |
| 2001 | 13 | 6 |
| 2002 | 16 | 5 |
| 2003 | 10 | 8 |
| 2004 | 8 | 10 |
| 2005 | 8 | 10 |
| 2006 | 11 | 8 |
| 2007 | 7 | 3 |
| 2008 | 7 | 15 |
| 2009 | 5 | 16 |
| 2010 | 16 | 20 |
| 2011 | 10 | 16 |
| 2012 | 14 | 21 |
| 2013 | 20 | 33 |
| 2014 | 33 | 40 |
| 2015 | 40 | 44 |
| 2016 | 45 | 45 |
| 2017 | 47 | 44 |
| 2018 | 54 | 54 |
| 2019 | 41 | 40 |
| 2020 | 50 | 37 |
| 2021 | 36 | 18 |
| 2022 | 20 | 23 |
| 2023 | 24 | 20 |
| 2024 | 31 | 25 |
| 2025 | 13 | 9 |
| 2026 | 2 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01T 13/04Means providing electrical connection to sparking plugs287
- H01T 13/08Mounting, fixing or sealing of sparking plugs212
- H01T 13/16Means for dissipating heat154
- H01T 13/06Covers forming a part of the plug and protecting it against adverse112
- H01T 13/14Means for self-cleaning79
- H01T 13/18Means for heating22
- H01T 13/12Means on sparking plugs for facilitating engagement by tool or by hand21
Recent patents
- Spark plug with ground electrode in a recess on housing end side30 Jun 2026US 12,671,233 B2Robert Bosch GmbH
- Spark plug electrode having thermally resilient joint and method of manufacturing the same10 Feb 2026US 12,548,984 B2Federal-Mogul Ignition Company
- Ignition system using push-pull transformer9 Dec 2025US 12,494,622 B2
- Pre-chamber assembly21 Oct 2025US 12,448,913 B2Innio Jenbacher GmbH & Co OG
- Spark plug socket23 Sep 2025US 12,420,384 B2Milwaukee Electric Tool Corporation
- Spark Plug, Spark Plug Sleeve And Spark Plug Assembly For A Gas Engine27 Aug 2026US 2026/0251087 A1Caterpillar Energy Solutions GmbH
- Spark plug resistor element arrangement, method for producing same, and spark plug for an internal combustion engine27 Aug 2026US 2026/0254205 A1
- Spark plug systems and methods2 Jul 2026US 2026/0188984 A1
- Magnetically rotating spark plug with slanted coaxial electrode30 Apr 2026US 2026/0117734 A1Hyundai Motor Company
- Spark-plug wires for vehicle ignition system26 Mar 2026US 2026/0088591 A1Ford Global Technologies, LLC
Most cited
By later US patents