H01J 29/00
Details of cathode-ray tubes or of electron-beam tubes of the types covered
Official title: Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
H01J29/00 (Details of cathode-ray tubes or of electron-beam tubes of the types covered) appears on 7,624 US grants and 2,959 published applications in this corpus.
Search patents in H01J- Granted patents
- 7,624
- Published applications
- 2,959
- Assignees
- 975
- Inventors
- 8,515
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 197 | 0 |
| 1977 | 159 | 0 |
| 1978 | 153 | 0 |
| 1979 | 118 | 0 |
| 1980 | 148 | 0 |
| 1981 | 151 | 0 |
| 1982 | 156 | 0 |
| 1983 | 115 | 0 |
| 1984 | 122 | 0 |
| 1985 | 168 | 0 |
| 1986 | 173 | 0 |
| 1987 | 214 | 0 |
| 1988 | 203 | 0 |
| 1989 | 203 | 0 |
| 1990 | 178 | 0 |
| 1991 | 187 | 0 |
| 1992 | 169 | 0 |
| 1993 | 178 | 0 |
| 1994 | 144 | 0 |
| 1995 | 178 | 0 |
| 1996 | 206 | 0 |
| 1997 | 220 | 0 |
| 1998 | 322 | 0 |
| 1999 | 320 | 0 |
| 2000 | 306 | 0 |
| 2001 | 310 | 155 |
| 2002 | 380 | 431 |
| 2003 | 446 | 339 |
| 2004 | 348 | 326 |
| 2005 | 207 | 281 |
| 2006 | 214 | 309 |
| 2007 | 146 | 285 |
| 2008 | 134 | 167 |
| 2009 | 108 | 127 |
| 2010 | 130 | 105 |
| 2011 | 95 | 93 |
| 2012 | 84 | 51 |
| 2013 | 49 | 47 |
| 2014 | 39 | 39 |
| 2015 | 44 | 32 |
| 2016 | 33 | 19 |
| 2017 | 28 | 21 |
| 2018 | 26 | 28 |
| 2019 | 25 | 22 |
| 2020 | 24 | 12 |
| 2021 | 16 | 16 |
| 2022 | 11 | 18 |
| 2023 | 13 | 7 |
| 2024 | 13 | 13 |
| 2025 | 9 | 7 |
| 2026 | 4 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01J 29/02Electrodes3,189
- H01J 29/46Arrangements of electrodes and associated parts for generating or controlling the ray2,528
- H01J 29/86Vessels1,872
- H01J 29/94Selection of substances for gas fillings260
- H01J 29/92Means forming part of the tube for the purpose of providing electrical229
- H01J 29/003Arrangements for eliminating unwanted electromagnetic effects189
- H01J 29/96One or more circuit elements structurally associated with the tube121
- H01J 29/98Circuit arrangements not adapted to a particular application of the tube and98
Recent patents
- Electron emission methods to generate electron beams with a narrow energy distribution25 Aug 2026US 12,719,005 B2The Regents of the University of California
- Sterilization of an object using low energy electron beam28 Jul 2026US 12,691,189 B2Pharmalab Idia Pvt. Ltd.
- Nightvision tube module simplification23 Jun 2026US 12,665,156 B2L3Harris Technologies, Inc.
- Image intensifier with dynamic optocoupler elements24 Feb 2026US 12,562,332 B1
- Stack alignment techniques18 Nov 2025US 12,476,075 B2ASML Netherlands B. V.
- Sterilization of an object using low energy electron beam13 Aug 2026US 2026/0232852 A1Pharmalab India Pvt. Ltd.
- Sterilization of an object using low energy electron beam13 Aug 2026US 2026/0232853 A1Pharmalab India Pvt. Ltd.
- Insulator, Charged Particle Gun, and Charged Particle Beam Device6 Aug 2026US 2026/0229440 A1Hitachi High-Tech Corporation
- Insulator, Insulator-Equipped Charged Particle Gun, Insulator-Equipped Charged Particle Beam Device, and Insulator Manufacturing Method6 Aug 2026US 2026/0229441 A1Hitachi High-Tech Corporation
- Electron tube6 Aug 2026US 2026/0229442 A1Nisshinbo Micro Devices Inc.
Most cited
By later US patents
- Light emitting device having a nitride compound semiconductor and a phosphor containing a garnet fluorescent material1,017US 5,998,925 ANichia Kagaku Kogyo K. K. · 1999
- Transparent substrate with diffuser surface498US 6,001,486 ADonnelly Corporation · 1999
- Light emitting device having a nitride compound semiconductor and a phosphor containing a garnet fluorescent material351US 6,069,440 ANichia Kagaku Kogyo K. K. · 2000
- Touch position sensitive surface279US 4,484,179 AAT&T Bell Laboratories · 1984
- Contrast enhancing transparent touch panel device254US 4,958,148 AElmwood Sensors, Inc. · 1990