H01J 17/44
Having one or more control electrodes
Official title: having one or more control electrodes
H01J17/44 (Having one or more control electrodes) appears on 44 US grants and 7 published applications in this corpus.
Search patents in H01J- Granted patents
- 44
- Published applications
- 7
- Assignees
- 28
- Inventors
- 65
- Latest grant
- 26 Sep 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Glow discharge tube with a set of electrodes within a gas-sealed envelope26 Sep 2023US 11,769,991 B2Unison Industries, LLC
- Bidirectional gas discharge tube25 Oct 2022US 11,482,394 B2General Electric Technology GmbH
- High voltage, cross-field, gas switch and method of operation26 May 2020US 10,665,402 B2General Electric Company
- Low voltage drop, cross-field, gas switch and method of operation9 Apr 2019US 10,256,067 B1General Electric Company
- Vacuum switching assembly14 Feb 2017US 9,570,263 B2Supergrid Institute
- Glow discharge tube with a set of electrodes within a gas-sealed envelope6 Apr 2023US 2023/0104635 A1Unison Industries, LLC
- Bidirectional gas discharge tube15 Jul 2021US 2021/0217573 A1General Electric Company
- High voltage, cross-field, gas switch and method of operation8 Aug 2019US 2019/0244775 A1General Electric Company
- Vacuum switching assembly5 May 2016US 2016/0126050 A1Supergrid Institute
- Controllable Gas-Discharge Device14 May 2009US 2009/0121629 A1
Most cited
By later US patents
- Modulator switch with low voltage control56US 4,596,945 AHughes Aircraft Company · 1986
- Triggering technique for multi-electrode spark gap switch46US 5,153,460 AThe United States of America as represented by the Secretary of the Army · 1992
- Nonthermionic hollow anode gas discharge electron beam source44US 4,647,818 ASFE Technologies · 1987
- Integrated spark gap device32US 6,977,468 B1Auburn University · 2005
- Radial geometry electron beam controlled switch utilizing wire-ion-plasma electron source27US 4,645,978 AHughes Aircraft Company · 1987