H01J 23/07
Producing a hollow cylindrical beam
Official title: producing a hollow cylindrical beam (H01J23/075 takes precedence)
H01J23/07 (Producing a hollow cylindrical beam) appears on 15 US grants and 5 published applications in this corpus.
Search patents in H01J- Granted patents
- 15
- Published applications
- 5
- Assignees
- 11
- Inventors
- 24
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 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 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Electron gun21 May 2024US 11,990,307 B2Thales Deutschland GmbH Electron Devices
- Cathode-in-cathode high-power microwave (HPM) vacuum tube source and method of alignment24 Oct 2023US 11,798,769 B1Raytheon Company
- Annular cathode for vacuum tube18 May 2021US 11,011,338 B2Thales
- Electron beam gun with kinematic coupling for high power RF vacuum devices22 Nov 2016US 9,502,203 B1Dymenso LLC
- Composite Electron Beam Vacuum Tube19 Sep 2024US 2024/0312754 A1The Boeing Company
- Electron gun11 Nov 2021US 2021/0350995 A1Thales Deutschland GmbH Electron Devices
- Annular cathode for vacuum tube14 Jan 2021US 2021/0012994 A1Thales
- Electron tube control grid30 Dec 2004US 2004/0263050 A1Thales
- Electron source14 Aug 2003US 2003/0151341 A1Genvac Aerospace Corporation
Most cited
By later US patents
- Hollow beam electron source26US 4,350,926 AThe United States of America as represented by the Secretary of the Army · 1982
- Injection of an electron beam13US 4,199,709 ACommissariat A L' Energie Atomique · 1980
- Gyrotron device11US 4,482,843 AThorn EMI-Varian Limited · 1984
- Advanced center post electron gun10US 5,461,282 ALitton Systems, Inc. · 1995
- Tilt-angle electron gun7US 4,562,380 ARaytheon Company · 1985