H01J 31/02
Cathode ray tubes: having one or more output electrodes which may be
Official title: having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused {(pulse counting circuits therewith H03K29/06)}
H01J31/02 (Cathode ray tubes: having one or more output electrodes which may be) appears on 33 US grants and 16 published applications in this corpus.
Search patents in H01J- Granted patents
- 33
- Published applications
- 16
- Assignees
- 27
- Inventors
- 50
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 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 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 3 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sterilization of an object using low energy electron beam28 Jul 2026US 12,691,189 B2Pharmalab Idia Pvt. Ltd.
- Extreme-ultraviolet light source device using electron beams21 Oct 2025US 12,451,316 B2Worldbeam Solution Co., Ltd.
- Electron gun, electron beam applicator, method for releasing electrons using electron gun, and method for adjusting focal position of electron beam7 Dec 2021US 11,195,685 B2Photo electron Soul Inc.
- High energy X-ray generation without the use of a high voltage power supply29 Dec 2020US 10,879,027 B2Becsis, LLC
- Beam position monitors for medical radiation machines29 Dec 2020US 10,879,028 B2Varian Medical Systems, Inc.
- Sterilization of an object using low energy electron beam13 Aug 2026US 2026/0232852 A1Pharmalab India Pvt. Ltd.
- Sterilization of an object using low energy electron beam13 Aug 2026US 2026/0232853 A1Pharmalab India Pvt. Ltd.
- Sterilization of an object using low energy electron beam4 Dec 2025US 2025/0367334 A1Pharmalab India Pvt. Ltd.
- Particle beam system23 May 2024US 2024/0170248 A1
- Extreme-ultraviolet light source device using electron beams20 Apr 2023US 2023/0122253 A1University-Industry Cooperation Group of Kyung Hee University
Most cited
By later US patents
- Use of a free space electron switch in a telecommunications network60US 6,545,425 B2Exaconnect Corp. · 2003
- Free space electron switch50US 6,407,516 B1Exaconnect Corp. · 2002
- Use of a free space electron switch in a telecommunications network43US 6,801,002 B2Exaconnect Corp. · 2004
- Semi-conductor interconnect using free space electron switch41US 6,800,877 B2Exaconnect Corp. · 2004
- Semi-conductor interconnect using free space electron switch41US 7,064,500 B2Exaconnect Corp. · 2006