H01J 25/76
Dynamic electron-multiplier tubes
Official title: Dynamic electron-multiplier tubes, e.g. Farnsworth multiplier tube, multipactor
H01J25/76 (Dynamic electron-multiplier tubes) appears on 10 US grants and 5 published applications in this corpus.
Search patents in H01J- Granted patents
- 10
- Published applications
- 5
- Assignees
- 7
- Inventors
- 15
- Latest grant
- 14 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 2 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Reflection mode dynode14 Jan 2025US 12,198,915 B2Adaptas Solutions Pty Ltd
- Component having a multipactor-inhibiting carbon nanofilm thereon, apparatus including the component, and methods of manufacturing and using the component10 Jan 2017US 9,543,105 B2Nokomis, Inc.
- Component having a multipactor-inhibiting carbon nanofilm thereon, apparatus including the component, and methods of manufacturing and using the component3 Mar 2015US 8,970,329 B2Nokomis, Inc.
- Reduction of multipacting by means of spatially varying magnetization13 May 2014US 8,723,617 B2Cern - European Organization for Nuclear Research
- Device for generating THz radiation with free electron beams11 Feb 2014US 8,648,319 B2
- Improved reflection mode dynode14 Jul 2022US 2022/0223393 A1Adaptas Solutions Pty Ltd
- Component Having a Multipactor-Inhibiting Carbon Nanofilm Thereon, Apparatus Including the Component, and Methods of Manufacturing and Using the Component18 Jun 2015US 2015/0170867 A1Nokomis, Inc.
- Device for generating thz radiation with free electron beams10 Oct 2013US 2013/0264500 A1
- Component having a multipactor-inhibiting carbon nanofilm thereon, apparatus including the component, and methods of manufacturing and using the component7 Feb 2013US 2013/0033343 A1Nokomis, Inc.
- Reduction of multipacting by means of spatially varying magnetization25 Aug 2011US 2011/0205002 A1Cern - European Organization for Nuclear Research
Most cited
By later US patents
- Broadband multipactor device3US 4,634,929 AThe United States of America as represented by the Secretary of the Army · 1987
- Electronic tunable microwave device2US 4,035,688 AThomson-CSF · 1977
- Multipactor discharge arrangements2US 4,105,951 AEnglish Electric Valve Company Limited · 1978
- Multipactor device with radioactive electron source2US 4,816,785 AHughes Aircraft Company · 1989
- Device for generating THz radiation with free electron beams1US 8,648,319 B22014