H01J 29/36
Photoelectric screens
Official title: Photoelectric screens; Charge-storage screens
H01J29/36 (Photoelectric screens) appears on 308 US grants and 18 published applications in this corpus.
Search patents in H01J- Granted patents
- 308
- Published applications
- 18
- Assignees
- 92
- Inventors
- 430
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 44 | 0 |
| 1977 | 34 | 0 |
| 1978 | 19 | 0 |
| 1979 | 14 | 0 |
| 1980 | 14 | 0 |
| 1981 | 18 | 0 |
| 1982 | 15 | 0 |
| 1983 | 7 | 0 |
| 1984 | 12 | 0 |
| 1985 | 13 | 0 |
| 1986 | 13 | 0 |
| 1987 | 9 | 0 |
| 1988 | 7 | 0 |
| 1989 | 16 | 0 |
| 1990 | 9 | 0 |
| 1991 | 12 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 9 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 2 |
| 2015 | 1 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 2 |
| 2019 | 1 | 2 |
| 2020 | 2 | 0 |
| 2021 | 2 | 0 |
| 2022 | 0 | 2 |
| 2023 | 2 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Lattice matched photocathodes for extended wavelengths20 May 2025US 12,308,198 B2L3Harris Technologies, Inc.
- Photosensor14 Nov 2023US 11,815,632 B2Kyungpook National University Industry-Academic Cooperation Foundation
- Electron tube3 Oct 2023US 11,776,798 B2Hamamatsu Photonics K.K.
- Photocathode including silicon substrate with boron layer3 Aug 2021US 11,081,310 B2KLA-Tencor Corporation
- Triode electron gun2 Mar 2021US 10,937,621 B2Accelerad Technologies, Inc.
- Design of lattice matched photocathodes for extended wavelengths31 Jul 2025US 2025/0246392 A1L3Harris Technologies, Inc.
- Design of lattice matched photocathodes for extended wavelengths23 May 2024US 2024/0170247 A1L3Harris Technologies, Inc.
- Electron tube29 Dec 2022US 2022/0415638 A1Hamamatsu Photonics K.K.
- Photosensor18 Aug 2022US 2022/0260730 A1Kyungpook National University Industry-Academic Cooperation Foundation
- Triode electron gun5 Sep 2019US 2019/0272969 A1Accelerad Technologies, Inc.
Most cited
By later US patents
- Photoluminescent objects207US 9,057,021 B2Performance Indicator, LLC · 2015
- Low intensity X-ray and gamma-ray imaging device46US 4,142,101 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1979
- Epitaxial indium-gallium-arsenide phosphide layer on lattice-matched indium-phosphide substrate and devices45US 3,982,261 AVarian Associates, Inc. · 1976
- Method of manufacturing a target assembly for a camera tube41US 4,251,909 AU. S. Philips Corporation · 1981
- Photocathodes38US 4,099,198 AEnglish Electric Valve Company Limited · 1978