H01J 13/06
Cathodes
H01J13/06 (Cathodes) appears on 10 US grants and 6 published applications in this corpus.
Search patents in H01J- Granted patents
- 10
- Published applications
- 6
- Assignees
- 6
- Inventors
- 20
- Latest grant
- 25 Oct 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 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 | 1 | 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 | 1 | 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 | 2 | 3 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 1 | 2 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Bidirectional gas discharge tube25 Oct 2022US 11,482,394 B2General Electric Technology GmbH
- Liquid electrode tip19 Oct 2021US 11,150,192 B22S Water Incorporated
- Cold cathode switching device and converter3 Mar 2020US 10,580,610 B2General Electric Company
- Liquid filament for incandescent lights1 Aug 2017US 9,723,702 B2Elwha LLC
- Liquid filament for incandescent lights8 Nov 2016US 9,490,097 B2Elwha LLC
- Liquid electrode tip22 Jul 2021US 2021/0223182 A12S Water Incorporated
- Bidirectional gas discharge tube15 Jul 2021US 2021/0217573 A1General Electric Company
- Liquid filament for incandescent lights9 Feb 2017US 2017/0042006 A1Elwha LLC
- Liquid filament for incandescent lights30 Jun 2016US 2016/0189906 A1Elwha LLC
- Liquid filament for incandescent lights3 Mar 2016US 2016/0064205 A1Elwha LLC
Most cited
By later US patents
- Pulsed cesium discharge light source7US 4,173,728 AGeneral Electric Company · 1979
- Switching arrangements wherein a cylindrical trigger electrode is arranged around a gap between an anode and cathode for establishing a discharge therebetween4US 5,994,850 AEEV Limited · 1999
- Orientation independent ignitron1US 4,264,839 AHughes Aircraft Company · 1981
- Orientation independent ignitron with grooved cathode1US 4,970,440 AHughes Aircraft Company · 1990