H01J 21/04
Without control means, i.e. diodes
Official title: without control means, i.e. diodes
H01J21/04 (Without control means, i.e. diodes) appears on 25 US grants and 19 published applications in this corpus.
Search patents in H01J- Granted patents
- 25
- Published applications
- 19
- Assignees
- 22
- Inventors
- 43
- Latest grant
- 31 Jan 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 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 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 4 |
| 2006 | 2 | 3 |
| 2007 | 1 | 2 |
| 2008 | 0 | 2 |
| 2009 | 1 | 0 |
| 2010 | 2 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 2 | 2 |
| 2016 | 0 | 1 |
| 2017 | 2 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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- Printed active device with a 3D thermionic electronic component19 Nov 2019US 10,483,074 B2British Telecommunications Public Ltd.Co.
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- Vacuum integrated electronic device and manufacturing process thereof5 Sep 2017US 9,754,756 B2Stmicroelectronics Pte Ltd
- Process for manufacturing a semiconductor device comprising an empty trench structure and semiconductor device manufactured thereby24 Jan 2017US 9,553,209 B2STMicroelectronics S,r.l.
- Grid Influencing System5 Aug 2021US 2021/0241980 A1Siemens Aktiengesellschaft
- Printed active device30 Nov 2017US 2017/0345610 A1British Telecommunications Public Ltd.Co.
- Vacuum integrated electronic device and manufacturing process thereof25 May 2017US 2017/0148604 A1Stmicroelectronics Pte Ltd
- Process for manufacturing a semiconductor device comprising an empty trench structure and semiconductor device manufactured thereby19 May 2016US 2016/0141428 A1STMicroelectronics S,r.l.
- Electrode coating for electron emission devices within cavities29 Oct 2015US 2015/0311024 A1NXP B. V.
Most cited
By later US patents
- Method and apparatus for vacuum diode-based devices with electride-coated electrodes62US 5,675,972 ABorealis Technical Limited · 1997
- Doped diamond for vacuum diode heat pumps and vacuum diode thermionic generators37US 6,214,651 B1Borealis Technical Limited · 2001
- Doped diamond for vacuum diode heat pumps and vacuum diode thermionic generators35US 5,981,071 ABorealis Technical Limited · 1999
- Method for making a low work function electrode24US 6,103,298 ABorealis Technical Limited · 2000
- Oxidized porous silicon field emission devices21US 5,430,300 AThe Texas A&M University System · 1995