H01J 9/505
Regeneration of cathodes
Official title: {Regeneration of cathodes}
H01J9/505 (Regeneration of cathodes) appears on 12 US grants and 9 published applications in this corpus.
Search patents in H01J- Granted patents
- 12
- Published applications
- 9
- Assignees
- 13
- Inventors
- 35
- Latest grant
- 26 Apr 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 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 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 1 |
| 2022 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Electron source regeneration method26 Apr 2022US 11,315,748 B238th Research Institute, China Electronics Technology Group Corporation
- Electron gun and electron beam device12 Apr 2022US 11,302,509 B2JEOL Ltd.
- Handheld material analyser14 Jul 2020US 10,712,296 B2Orion Engineering Limited
- Discharge lamp lighting apparatus5 Sep 2017US 9,756,711 B2Ushio Denki Kabushiki Kaisha
- Photocathode device that replenishes photoemissive coating14 Jun 2016US 9,368,311 B2Los Alamos National Security, LLC
- Electron source regeneration method18 Feb 2021US 2021/0050173 A138th Research Institute, China Electronics Technology Group Corporation
- Handheld material analyser19 Mar 2020US 2020/0088660 A1Orion Engineering Limited
- Electron Gun and Electron Beam Device14 Mar 2019US 2019/0080878 A1JEOL Ltd.
- Discharge lamp lighting apparatus17 Nov 2016US 2016/0338183 A1Ushio Denki Kabushiki Kaisha
- Photocathode device that replenishes photoemissive coating31 Mar 2016US 2016/0093460 A1Los Alamos National Security, LLC
Most cited
By later US patents
- Cathode ray tube processing10US 4,457,731 AU. S. Philips Corporation · 1984
- Charged particle beam emitting device and method for operating a charged particle beam emitting device6US 7,501,638 B1ICT Integrated Circuit Testing Gesellschaft für Halbeiterprüftechnik mbH · 2009
- Apparatus and method for rejuvenating cathode ray tubes5US 3,997,223 ADynascan Corporation · 1976
- Method for regenerating microtips of a flat display screen3US 6,081,247 APixtech S.A. · 2000
- Apparatus for restoring cathode-ray tubes2US 3,977,745 ASafe Electronic Systems S.A. · 1976