H01T 4/18
Arrangements for reducing height of stacked spark gaps
H01T4/18 (Arrangements for reducing height of stacked spark gaps) appears on 8 US grants and 5 published applications in this corpus.
Search patents in H01T- Granted patents
- 8
- Published applications
- 5
- Assignees
- 3
- Inventors
- 7
- Latest grant
- 4 Mar 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 | 1 | 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 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 2 | 3 |
| 2021 | 2 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Spark gap arrangement4 Mar 2025US 12,244,123 B2Phoenix Contact GmbH & Co.KG
- Multi-spark gap for an overvoltage protector24 Dec 2024US 12,176,686 B2Phoenix Contact GmbH & Co.KG
- Holding arrangement and arrangement of at least two stack spark gaps9 Feb 2021US 10,916,920 B2Phoenix Contact GmbH & Co.KG
- Surge protection device26 Jan 2021US 10,903,647 B2Phoenix Contact GmbH & Co.KG
- Arrangement of stack spark gaps and device for holding together and electrically contacting stack spark gaps15 Sep 2020US 10,777,973 B2Phoenix Contact GmbH & Co.KG
- Spark gap arrangement2 Nov 2023US 2023/0352914 A1Phoenix Contact GmbH & Co.KG
- Multi-spark gap for an overvoltage protector2 Nov 2023US 2023/0352915 A1Phoenix Contact GmbH & Co.KG
- Arrangement of stack spark gaps and device for holding together and electrically contacting stack spark gaps6 Feb 2020US 2020/0044419 A1Phoenix Contact GmbH & Co.KG
- Holding arrangement and arrangement of at least two stack spark gaps6 Feb 2020US 2020/0044420 A1Phoenix Contact GmbH & Co.KG
- Surge protection device6 Feb 2020US 2020/0044442 A1Phoenix Contact GmbH & Co.KG
Most cited
By later US patents
- Surge arrester of the multi-gap type10US 3,973,172 AThe Ohio Brass Company · 1976
- Overvoltage arrester with arrester elements in a frame comprising columns4US 4,363,069 ASiemens Aktiengesellschaft · 1982
- Surge protection device1US 10,903,647 B2Phoenix Contact GmbH & Co.KG · 2021
- Holding arrangement and arrangement of at least two stack spark gaps1US 10,916,920 B2Phoenix Contact GmbH & Co.KG · 2021