H01J 29/485
Construction of the gun or of parts thereof
Official title: {Construction of the gun or of parts thereof (H01J29/481, H01J29/482, H01J29/484 and H01J29/487 take precedence)}
H01J29/485 (Construction of the gun or of parts thereof) appears on 156 US grants and 51 published applications in this corpus.
Search patents in H01J- Granted patents
- 156
- Published applications
- 51
- Assignees
- 65
- Inventors
- 300
- Latest grant
- 24 Jan 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 19 | 0 |
| 2000 | 8 | 0 |
| 2001 | 6 | 3 |
| 2002 | 8 | 10 |
| 2003 | 10 | 7 |
| 2004 | 7 | 6 |
| 2005 | 5 | 2 |
| 2006 | 3 | 3 |
| 2007 | 1 | 0 |
| 2008 | 2 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 3 |
| 2014 | 0 | 1 |
| 2015 | 5 | 3 |
| 2016 | 3 | 3 |
| 2017 | 2 | 0 |
| 2018 | 1 | 1 |
| 2019 | 1 | 2 |
| 2020 | 3 | 2 |
| 2021 | 2 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Electron photoinjector24 Jan 2023US 11,562,874 B2Arizona Board of Regents on behalf of Arizona State University
- Cathode mechanism of electron gun, electron gun, and electron beam writing apparatus30 Aug 2022US 11,430,628 B1NuFlare Technology, Inc.
- Electron photoinjector8 Jun 2021US 11,031,206 B2Arizona Board of Regents on behalf of Arizona State University
- Electromagnetic interference containment for accelerator systems25 May 2021US 11,017,975 B2Varian Medical Systems, Inc.
- Radial radio frequency (RF) electron guns1 Dec 2020US 10,854,417 B1Triad National Security, LLC
- Electron source based on field emission and production process for same5 Jan 2023US 2023/0005695 A1Centre National De La Recherche Scientifique
- Cathode mechanism of electron gun, electron gun, and electron beam writing apparatus25 Aug 2022US 2022/0270842 A1NuFlare Technology, Inc.
- Electron photoinjector23 Dec 2021US 2021/0398768 A1Arizona Board of Regents on behalf of Arizona State University
- Electromagnetic interference containment for accelerator systems30 Apr 2020US 2020/0135423 A1Varian Medical Systems, Inc.
- Electron photoinjector12 Mar 2020US 2020/0083014 A1Arizona Board of Regents on behalf of Arizona State University
Most cited
By later US patents
- In-line type electron gun enabling easy centering between main electrode and auxiliary electrode34US 5,208,507 ASamsung Electron Devices Co., Ltd. · 1993
- Electron gun for a cathode ray tube26US 5,773,925 ASony Corporation · 1998
- Cathode assembly, electron gun assembly, electron tube, heater, and method of manufacturing cathode assembly and electron gun assembly22US 6,130,502 AKabushiki Kaisha Toshiba · 2000
- Alumina sintered product19US 5,830,819 AKYOCERA Corporation · 1998
- Device for generating electrons, and display device17US 5,315,207 AU. S. Philips Corporation · 1994