H01T 13/06
Covers forming a part of the plug and protecting it against adverse
Official title: Covers forming a part of the plug and protecting it against adverse environment
H01T13/06 (Covers forming a part of the plug and protecting it against adverse) appears on 112 US grants and 79 published applications in this corpus.
Search patents in H01T- Granted patents
- 112
- Published applications
- 79
- Assignees
- 47
- Inventors
- 235
- Latest grant
- 3 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 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 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 7 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 2 |
| 2002 | 2 | 0 |
| 2003 | 1 | 2 |
| 2004 | 3 | 1 |
| 2005 | 3 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 4 |
| 2012 | 0 | 3 |
| 2013 | 2 | 4 |
| 2014 | 4 | 5 |
| 2015 | 3 | 3 |
| 2016 | 3 | 5 |
| 2017 | 8 | 5 |
| 2018 | 3 | 9 |
| 2019 | 6 | 2 |
| 2020 | 13 | 9 |
| 2021 | 6 | 1 |
| 2022 | 7 | 9 |
| 2023 | 4 | 3 |
| 2024 | 6 | 4 |
| 2025 | 2 | 3 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Support pin for igniter assembly3 Jun 2025US 12,320,523 B2Pratt & Whitney Canada Corp.
- Spark plug11 Mar 2025US 12,249,808 B2Niterra Co., Ltd.
- Pre-chamber spark plug with improved heating behavior8 Oct 2024US 12,113,335 B2Robert Bosch GmbH
- Spark plug2 Jul 2024US 12,027,826 B2Federal-Mogul Ignition Company
- Spark plug with integrated center electrode25 Jun 2024US 12,021,353 B2EcoPower Spark, LLC
- Magnetically rotating spark plug with slanted coaxial electrode30 Apr 2026US 2026/0117734 A1Hyundai Motor Company
- Prechamber spark plug15 Jan 2026US 2026/0015966 A1
- Spark plug4 Dec 2025US 2025/0372960 A1Niterra Co., Ltd.
- Spark plug3 Jul 2025US 2025/0219360 A1Niterra Co., Ltd.
- Support Pin for Igniter Assembly10 Apr 2025US 2025/0116404 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Deep well ignition cable terminal assembly27US 4,906,202 AGeneral Motors Corporation · 1990
- Structure for connecting spark plug and ignition coil for internal combustion23US 5,618,193 ANippondenso Co., Ltd. · 1997
- Cap for a high-tension cable terminal for use in an automobile engine17US 5,324,207 ASumitomo Wiring Systems, Ltd. · 1994
- Shielding device for oriented spark plugs15US 4,145,106 ALivingston Industries, Incorporated · 1979
- Spark plug boot insulator14US 5,716,223 AGeneral Motors Corporation · 1998