H01J 40/00
Photoelectric discharge tubes not involving the ionisation of a gas
Official title: Photoelectric discharge tubes not involving the ionisation of a gas (H01J49/00 takes precedence)
H01J40/00 (Photoelectric discharge tubes not involving the ionisation of a gas) appears on 211 US grants and 147 published applications in this corpus.
Search patents in H01J- Granted patents
- 211
- Published applications
- 147
- Assignees
- 114
- Inventors
- 398
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 13 | 0 |
| 1978 | 15 | 0 |
| 1979 | 10 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 9 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 3 | 3 |
| 2004 | 3 | 2 |
| 2005 | 1 | 5 |
| 2006 | 4 | 8 |
| 2007 | 2 | 9 |
| 2008 | 4 | 5 |
| 2009 | 9 | 6 |
| 2010 | 3 | 9 |
| 2011 | 6 | 8 |
| 2012 | 4 | 5 |
| 2013 | 5 | 9 |
| 2014 | 12 | 8 |
| 2015 | 8 | 6 |
| 2016 | 8 | 4 |
| 2017 | 5 | 5 |
| 2018 | 9 | 11 |
| 2019 | 10 | 9 |
| 2020 | 15 | 10 |
| 2021 | 5 | 4 |
| 2022 | 1 | 4 |
| 2023 | 4 | 10 |
| 2024 | 9 | 4 |
| 2025 | 5 | 1 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Photoelectric conversion device and photoelectric conversion method11 Aug 2026US 12,706,288 B2Hamamatsu Photonics K.K.
- Photoelectric conversion device, electromagnetic wave detection device, photoelectric conversion method and electromagnetic wave detection method26 May 2026US 12,640,354 B2Hamamatsu Photonics K.K.
- Photoelectric conversion device, electromagnetic wave detection device, photoelectric conversion method and electromagnetic wave detection method3 Mar 2026US 12,567,553 B2Danmarks Tekniske Universitet
- Electron tube, imaging device and electromagnetic wave detection device8 Jul 2025US 12,354,858 B2Hamamatsu Photonics K.K.
- And manufacturing methods of SWIR I2TUBE via heterogeneous wafer integration17 Jun 2025US 12,334,321 B1L3Harris Technologies, Inc.
- Photoelectron source, multi-photoelectron source and multi-beam irradiation apparatus7 Aug 2025US 2025/0253141 A1NuFlare Technology, Inc.
- Photoelectric conversion device, electromagnetic wave detection device, photoelectric conversion method and electromagnetic wave detection method31 Oct 2024US 2024/0363302 A1Danmarks Tekniske Universitet
- Field-emission photocathodes for high-power high-frequency electronics31 Oct 2024US 2024/0363320 A1
- Photoelectric conversion device and photoelectric conversion method24 Oct 2024US 2024/0355572 A1Danmarks Tekniske Universitet
- Photoelectric conversion device, electromagnetic wave detection device, photoelectric conversion method and electromagnetic wave detection method24 Oct 2024US 2024/0355601 A1Danmarks Tekniske Universitet
Most cited
By later US patents
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- Photomultiplier and detection systems57US 8,735,833 B2Rapiscan Systems, Inc. · 2014
- Composite gamma-neutron detection system43US 8,389,941 B2Rapiscan Systems, Inc. · 2013
- Photomultiplier and detection systems42US 8,993,970 B2Rapiscan Systems, Inc. · 2015