H01J 2231/50
Imaging and conversion tubes
H01J2231/50 (Imaging and conversion tubes) appears on 230 US grants and 83 published applications in this corpus.
Search patents in H01J- Granted patents
- 230
- Published applications
- 83
- Assignees
- 94
- Inventors
- 381
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 10 | 0 |
| 1994 | 11 | 0 |
| 1995 | 4 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 9 | 0 |
| 1999 | 7 | 0 |
| 2000 | 14 | 0 |
| 2001 | 11 | 2 |
| 2002 | 7 | 7 |
| 2003 | 11 | 6 |
| 2004 | 7 | 10 |
| 2005 | 8 | 7 |
| 2006 | 11 | 4 |
| 2007 | 3 | 4 |
| 2008 | 4 | 2 |
| 2009 | 2 | 4 |
| 2010 | 3 | 3 |
| 2011 | 3 | 5 |
| 2012 | 3 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 1 |
| 2015 | 3 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 1 | 2 |
| 2019 | 1 | 3 |
| 2020 | 5 | 3 |
| 2021 | 3 | 3 |
| 2022 | 2 | 4 |
| 2023 | 3 | 2 |
| 2024 | 4 | 3 |
| 2025 | 2 | 4 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01J 2231/50005Characterised by form of illuminationIndexing code147
- H01J 2231/50057Characterised by form of output stageIndexing code130
- H01J 2231/501Including multiplication stageIndexing code92
- H01J 2231/505With non-scanning opticsIndexing code13
- H01J 2231/503With scanning or gating opticsIndexing code3
Recent patents
- Electro-optical semi-transparent photonic up-converter3 Mar 2026US 12,567,554 B2L3Harris Technologies, Inc.
- Image intensifier with dynamic optocoupler elements24 Feb 2026US 12,562,332 B1
- Microchannel plate and method of making the microchannel plate with an electron backscatter layer to amplify first strike electrons8 Apr 2025US 12,272,515 B2Elbit Systems of America, LLC
- Electronically addressable display incorporated into a transmission mode secondary electron image intensifier11 Feb 2025US 12,224,148 B2Elbit Systems of America, LLC
- Global shutter for transmission mode secondary electron intensifier by a low voltage signal31 Dec 2024US 12,183,562 B2Elbit Systems of America, LLC
- Microchannel plate image intensifiers and methods of producing the same5 Jun 2025US 2025/0182995 A1SiOnyx, Inc.
- Microchannel plate and method of making the microchannel plate with an electron backscatter layer to amplify first strike electrons22 May 2025US 2025/0166954 A1Elbit Systems of America, LLC
- Electronically addressable display incorporated into a transmission mode secondary electron image intensifier1 May 2025US 2025/0140505 A1Elbit Systems of America, LLC
- Microchannel plate image intensifiers and methods of producing the same9 Jan 2025US 2025/0014852 A1SiOnyx, Inc.
- Digital night vision system7 Nov 2024US 2024/0369822 A1Galvion Ltd.
Most cited
By later US patents
- Multi-functional day/night observation, ranging, and sighting device with active optical target acquisition and method of its operation104US 5,973,315 ALitton Systems, Inc. · 1999
- Solid state electron amplifier71US 4,990,766 AMurasa International · 1991
- Integrated imaging and ranging lidar receiver64US 5,198,657 AGeneral Atomics · 1993
- High data rate smart sensor technology62US 6,362,482 B1Advanced Scientific Concepts, Inc. · 2002
- Device for inputting data60US 6,504,143 B2Deutsche Telekom AG · 2003