H01J 9/50
Repairing or regenerating used or defective discharge tubes or lamps
H01J9/50 (Repairing or regenerating used or defective discharge tubes or lamps) appears on 83 US grants and 61 published applications in this corpus.
Search patents in H01J- Granted patents
- 83
- Published applications
- 61
- Assignees
- 66
- Inventors
- 196
- Latest grant
- 16 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 1 |
| 2002 | 6 | 3 |
| 2003 | 3 | 3 |
| 2004 | 1 | 1 |
| 2005 | 2 | 5 |
| 2006 | 3 | 2 |
| 2007 | 1 | 3 |
| 2008 | 0 | 3 |
| 2009 | 1 | 0 |
| 2010 | 1 | 4 |
| 2011 | 1 | 2 |
| 2012 | 2 | 3 |
| 2013 | 4 | 10 |
| 2014 | 4 | 3 |
| 2015 | 7 | 5 |
| 2016 | 2 | 2 |
| 2017 | 3 | 1 |
| 2018 | 0 | 2 |
| 2019 | 4 | 2 |
| 2020 | 1 | 1 |
| 2021 | 1 | 2 |
| 2022 | 3 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 2 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Methods, systems, and apparatus for monitoring radiation output of lamps16 Sep 2025US 12,417,890 B2APPLIED Materials.Inc.
- Method and device for the reduction of contaminants in a plasma reactor, especially contamination by lubricants3 May 2022US 11,322,344 B2Plasma Investment Sp. z o.o
- 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.
- Microwave excited ultraviolet lamp system with data logging and retrieval circuit and method18 May 2021US 11,011,368 B2Nordson Corporation
- Methods, systems, and apparatus for monitoring radiation output of lamps11 Jul 2024US 2024/0234073 A9APPLIED Materials.Inc.
- Methods, systems, and apparatus for monitoring radiation output of lamps25 Apr 2024US 2024/0136140 A1APPLIED Materials.Inc.
- Magnetron maintenance23 Nov 2023US 2023/0376652 A1Elekta Limited
- Method and device for the reduction of contaminants in a plasma reactor, especially contamination by lubricants17 Jun 2021US 2021/0183640 A1Plasma Investment Sp. z o.o
- Electron source regeneration method18 Feb 2021US 2021/0050173 A138th Research Institute, China Electronics Technology Group Corporation
Most cited
By later US patents
- Removable bombardment filament-module for electron beam projection systems28US 6,252,339 B1Nikon Corporation · 2001
- Multiple gun cathode ray tube testing, cleaning, and rejuvenating apparatus23US 4,066,311 AHeath Company · 1978
- Identifying and disabling shorted electrodes in field emission display19US 6,034,480 AMicron Technology, Inc. · 2000
- Plasma display panel and method of separating the same17US 6,409,562 B1Matsushita Electric Industrial Co., Ltd. · 2002
- Method and apparatus for splitting a cathode ray tube14US 5,556,018 ASony Corporation · 1996