H01T 1/00
Details of spark gaps
H01T1/00 (Details of spark gaps) appears on 646 US grants and 341 published applications in this corpus.
Search patents in H01T- Granted patents
- 646
- Published applications
- 341
- Assignees
- 251
- Inventors
- 958
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 21 | 0 |
| 1978 | 15 | 0 |
| 1979 | 13 | 0 |
| 1980 | 12 | 0 |
| 1981 | 13 | 0 |
| 1982 | 25 | 0 |
| 1983 | 14 | 0 |
| 1984 | 14 | 0 |
| 1985 | 18 | 0 |
| 1986 | 9 | 0 |
| 1987 | 12 | 0 |
| 1988 | 12 | 0 |
| 1989 | 17 | 0 |
| 1990 | 16 | 0 |
| 1991 | 11 | 0 |
| 1992 | 10 | 0 |
| 1993 | 13 | 0 |
| 1994 | 14 | 0 |
| 1995 | 12 | 0 |
| 1996 | 16 | 0 |
| 1997 | 13 | 0 |
| 1998 | 6 | 0 |
| 1999 | 13 | 0 |
| 2000 | 5 | 0 |
| 2001 | 8 | 1 |
| 2002 | 5 | 2 |
| 2003 | 11 | 6 |
| 2004 | 5 | 7 |
| 2005 | 3 | 7 |
| 2006 | 2 | 2 |
| 2007 | 4 | 7 |
| 2008 | 4 | 12 |
| 2009 | 3 | 7 |
| 2010 | 10 | 13 |
| 2011 | 6 | 20 |
| 2012 | 12 | 10 |
| 2013 | 18 | 15 |
| 2014 | 11 | 25 |
| 2015 | 22 | 22 |
| 2016 | 22 | 19 |
| 2017 | 21 | 16 |
| 2018 | 16 | 26 |
| 2019 | 23 | 20 |
| 2020 | 15 | 18 |
| 2021 | 18 | 19 |
| 2022 | 17 | 14 |
| 2023 | 18 | 14 |
| 2024 | 12 | 21 |
| 2025 | 15 | 13 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01T 1/14Means structurally associated with spark gap for protecting it against overload or310
- H01T 1/20Means for starting arc or facilitating ignition of spark gap154
- H01T 1/12Means structurally associated with spark gap for recording operation thereof47
- H01T 1/15Details of spark gaps: for protection against excessive pressure47
- H01T 1/02Means for extinguishing arc46
- H01T 1/16Series resistor structurally associated with spark gap40
- H01T 1/24Selection of materials for electrodes28
- H01T 1/18Electrolytic device structurally associated with spark gap0
Recent patents
- Spark plug having a small inter-electrode distance and an at least partly negative spark position9 Jun 2026US 12,651,891 B2Robert Bosch GmbH
- Surge arrester for DC mains and method of operating such a surge arrester2 Jun 2026US 12,646,931 B2Dehn SE
- Monitoring arrangement and method for monitoring a surge5 May 2026US 12,618,879 B2Hitachi Energy Ltd
- Overvoltage protection device and method of manufacturing such a device7 Apr 2026US 12,597,540 B2Citel
- Gas-filled spark gap with high follow current extinction capacity31 Mar 2026US 12,592,549 B2Citel
- Transient voltage protection device13 Aug 2026US 2026/0237560 A1TDK Corporation
- Systems and methods for producing underwater pressure and acoustic waves6 Aug 2026US 2026/0227536 A1General Dynamics Mission Systems, Inc.
- Electrode with elongated elevation or groove, and a spark plug comprising such an electrode as a ground electrode23 Jul 2026US 2026/0213499 A1Robert Bosch GmbH
- Surge protection device, mov with integrated short circuit protection, insertion system and arc shield16 Apr 2026US 2026/0106451 A1MERSEN USA EP Corp.
- Assembly comprising a disconnecting device for a surge-arresting device9 Apr 2026US 2026/0100299 A1Siemens Energy Global GmbH & Co. KG
Most cited
By later US patents
- Electrosurgical method and apparatus for initiating an electrical discharge in an inert gas flow317US 4,040,426 AValleylab, Inc. · 1977
- Line protector for a communications circuit121US 4,262,317 AReliable Electric Company · 1981
- Arrester disconnecting device94US 4,864,455 AMitsubishi Denki Kabushiki Kaisha · 1989
- Circuit protection device91US 6,430,019 B1Ferraz · 2002
- Electrical switching device for thermal and overvoltage protection72US 4,085,397 AEmerson Electric Co. · 1978