H01J 17/06
Cathodes
H01J17/06 (Cathodes) appears on 93 US grants and 42 published applications in this corpus.
Search patents in H01J- Granted patents
- 93
- Published applications
- 42
- Assignees
- 58
- Inventors
- 208
- Latest grant
- 18 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 7 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 3 |
| 2003 | 3 | 1 |
| 2004 | 1 | 3 |
| 2005 | 0 | 0 |
| 2006 | 2 | 4 |
| 2007 | 2 | 4 |
| 2008 | 1 | 1 |
| 2009 | 3 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 4 |
| 2014 | 4 | 4 |
| 2015 | 3 | 3 |
| 2016 | 4 | 2 |
| 2017 | 3 | 1 |
| 2018 | 2 | 0 |
| 2019 | 1 | 2 |
| 2020 | 2 | 0 |
| 2021 | 0 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Nanoplasma switch device for ultrafast switching18 Mar 2025US 12,255,037 B2Ecole Polytechnique Federale de Lausanne
- Time-dependent plasma systems and methods for thermionic conversion3 Sep 2024US 12,081,145 B2Modern Hydrogen, Inc.
- 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
- Cold cathode switching device and converter3 Mar 2020US 10,580,610 B2General Electric Company
- Discharge tube8 Oct 2026US 2026/0311950 A1Hamamatsu Photonics K.K.
- Nanoplasma switch device for ultrafast switching9 Nov 2023US 2023/0360875 A1Ecole Polytechnique Federale De Lausanne (Epfl)
- Plasma source and switch device23 Feb 2023US 2023/0053887 A1Kabushiki Kaisha Toshiba
- Bidirectional gas discharge tube15 Jul 2021US 2021/0217573 A1General Electric Company
- Time-dependent plasma systems and methods for thermionic conversion15 Apr 2021US 2021/0111011 A1Modern Electron, LLC
Most cited
By later US patents
- Discharge device having cathode with micro hollow array70US 5,686,789 AOsram Sylvania Inc. · 1997
- Direct current energized pulse generator utilizing autogenous cyclical pulsed abnormal glow discharges68US 5,502,354 A1996
- Discharge device having cathode with micro hollow array60US 5,939,829 AOsram Sylvania Inc. · 1999
- Gas-discharging type display device and a method of manufacturing55US 5,557,168 AOkaya Electric Industries Co., Ltd. · 1996
- Plasma displays having electrodes of low-electron affinity materials51US 5,982,095 ALucent Technologies Inc. · 1999