H01J 2231/5013
With secondary emission electrodes
Official title: with secondary emission electrodes
H01J2231/5013 (With secondary emission electrodes) appears on 87 US grants and 38 published applications in this corpus.
Search patents in H01J- Granted patents
- 87
- Published applications
- 38
- Assignees
- 42
- Inventors
- 154
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 1 |
| 2004 | 1 | 5 |
| 2005 | 5 | 3 |
| 2006 | 4 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 0 |
| 2009 | 2 | 3 |
| 2010 | 2 | 1 |
| 2011 | 2 | 4 |
| 2012 | 3 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 2 |
| 2020 | 2 | 2 |
| 2021 | 3 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 2 |
| 2024 | 4 | 1 |
| 2025 | 2 | 4 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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
- Photoelectron multiplying and collecting tube and imaging device using same24 Dec 2024US 12,176,174 B2Hamamatsu Photonics K.K.
- 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.
- Microchannel plate and method of making the microchannel plate with an electron backscatter layer to amplify first strike electrons25 Apr 2024US 2024/0136141 A1Elbit Systems of America, LLC
Most cited
By later US patents
- Low light level and infrared viewing system48US 4,147,932 AXonics, Inc. · 1979
- Gated voltage apparatus for high light resolution and bright source protection of image intensifier tube26US 5,146,077 AITT Corporation · 1992
- Photoelectron microscope21US 5,045,696 AShimadzu Corporation · 1991
- Electron multipliers and radiation detectors20US 7,183,701 B2Nova Scientific, Inc. · 2007
- Image intensifier with time programmed variable gain19US 4,603,250 AThe United States of America as represented by the Secretary of the Army · 1986