H01J 29/02
Electrodes
Official title: Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
H01J29/02 (Electrodes) appears on 3,189 US grants and 1,389 published applications in this corpus.
Search patents in H01J- Granted patents
- 3,189
- Published applications
- 1,389
- Assignees
- 505
- Inventors
- 4,044
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 105 | 0 |
| 1977 | 67 | 0 |
| 1978 | 62 | 0 |
| 1979 | 44 | 0 |
| 1980 | 51 | 0 |
| 1981 | 65 | 0 |
| 1982 | 60 | 0 |
| 1983 | 27 | 0 |
| 1984 | 36 | 0 |
| 1985 | 59 | 0 |
| 1986 | 59 | 0 |
| 1987 | 87 | 0 |
| 1988 | 74 | 0 |
| 1989 | 74 | 0 |
| 1990 | 71 | 0 |
| 1991 | 71 | 0 |
| 1992 | 61 | 0 |
| 1993 | 60 | 0 |
| 1994 | 67 | 0 |
| 1995 | 69 | 0 |
| 1996 | 87 | 0 |
| 1997 | 110 | 0 |
| 1998 | 117 | 0 |
| 1999 | 122 | 0 |
| 2000 | 131 | 0 |
| 2001 | 125 | 76 |
| 2002 | 138 | 193 |
| 2003 | 203 | 151 |
| 2004 | 164 | 142 |
| 2005 | 84 | 119 |
| 2006 | 106 | 137 |
| 2007 | 68 | 142 |
| 2008 | 69 | 85 |
| 2009 | 57 | 70 |
| 2010 | 66 | 57 |
| 2011 | 48 | 46 |
| 2012 | 57 | 31 |
| 2013 | 33 | 26 |
| 2014 | 22 | 26 |
| 2015 | 23 | 18 |
| 2016 | 22 | 8 |
| 2017 | 14 | 10 |
| 2018 | 13 | 11 |
| 2019 | 6 | 9 |
| 2020 | 14 | 3 |
| 2021 | 4 | 7 |
| 2022 | 4 | 5 |
| 2023 | 6 | 2 |
| 2024 | 3 | 4 |
| 2025 | 2 | 4 |
| 2026 | 2 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01J 29/10Screens on or from which an image or pattern is formed, picked1,123
- H01J 29/06Screens for shielding1,076
- H01J 29/04Cathodes364
- H01J 29/028Mounting or supporting arrangements for flat panel cathode ray tubes339
- H01J 29/08Electrodes intimately associated with a screen on or from which an image336
- H01J 29/023Secondary-electron emitting electrode arrangements32
- H01J 29/025Mounting or supporting arrangements for grids9
- H01J 29/021Arrangements for eliminating interferences in the tube7
All 9 subgroupsShow fewer
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By later US patents
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