H01T 13/04
Means providing electrical connection to sparking plugs
H01T13/04 (Means providing electrical connection to sparking plugs) appears on 287 US grants and 161 published applications in this corpus.
Search patents in H01T- Granted patents
- 287
- Published applications
- 161
- Assignees
- 107
- Inventors
- 448
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 9 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 12 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 10 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 2 |
| 2002 | 9 | 3 |
| 2003 | 2 | 2 |
| 2004 | 3 | 6 |
| 2005 | 4 | 2 |
| 2006 | 4 | 5 |
| 2007 | 3 | 2 |
| 2008 | 4 | 2 |
| 2009 | 1 | 4 |
| 2010 | 4 | 3 |
| 2011 | 3 | 2 |
| 2012 | 3 | 7 |
| 2013 | 5 | 7 |
| 2014 | 3 | 8 |
| 2015 | 11 | 15 |
| 2016 | 13 | 15 |
| 2017 | 18 | 18 |
| 2018 | 16 | 20 |
| 2019 | 20 | 13 |
| 2020 | 10 | 6 |
| 2021 | 5 | 7 |
| 2022 | 8 | 2 |
| 2023 | 5 | 2 |
| 2024 | 2 | 3 |
| 2025 | 3 | 3 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ignition system using push-pull transformer9 Dec 2025US 12,494,622 B2
- Spark plug with electrode head shielding element5 Aug 2025US 12,381,374 B2EcoPower Spark, LLC
- Prechamber spark plug for an internal combustion engine and internal combustion engine4 Mar 2025US 12,241,402 B2Mercedes-Benz Group AG
- Spark plug with electrode head shielding element11 Jun 2024US 12,009,640 B2EcoPower Spark, LLC
- System and method for spark plug identification and engine monitoring14 May 2024US 11,984,705 B2Ai Alpine US Bidco Inc
- Spark plug resistor element arrangement, method for producing same, and spark plug for an internal combustion engine27 Aug 2026US 2026/0254205 A1
- Spark-plug wires for vehicle ignition system26 Mar 2026US 2026/0088591 A1Ford Global Technologies, LLC
- Spark plug25 Dec 2025US 2025/0392105 A1Niterra Co., Ltd.
- Ignition coil11 Sep 2025US 2025/0285806 A1Diamond&Zebra Electric Mfg. Co., Ltd.
- Ignition system using push-pull transformer21 Aug 2025US 2025/0266665 A1Marshall Electric Corp.
Most cited
By later US patents
- Spark plug connector88US 5,791,918 A1998
- Connecting part for an ignition plug and ignition cable36US 6,273,733 B1Sumitomo Wiring Systems, Ltd. · 2001
- Spark plug shield and boot seal assembly30US 4,671,586 AGeneral Motors Corporation · 1987
- Electrical connector29US 5,033,982 ASun Microstamping, Inc. · 1991
- Deep well ignition cable terminal assembly27US 4,906,202 AGeneral Motors Corporation · 1990