H01J 25/74
Tubes specially designed to act as transit-time diode oscillators
Official title: Tubes specially designed to act as transit-time diode oscillators, e.g. monotrons
H01J25/74 (Tubes specially designed to act as transit-time diode oscillators) appears on 12 US grants and 7 published applications in this corpus.
Search patents in H01J- Granted patents
- 12
- Published applications
- 7
- Assignees
- 10
- Inventors
- 20
- Latest grant
- 4 Jul 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 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 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 2 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Microwave wave generator device with a virtual cathode oscillator and axial geometry, comprising at least one reflector and a magnetic ring, configured to be supplied by a high-impedance generator4 Jul 2017US 9,697,979 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Microwave generator with virtual cathode oscillator and open reflectors15 Nov 2016US 9,496,114 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Microwave generator7 May 2013US 8,436,493 B2Diehl Bgt Defence GmbH & Co. KG
- Device for generation of microwaves14 Feb 2012US 8,115,392 B1Bae Systems Bofors AB
- Device for generation of microwaves9 Aug 2011US 7,994,966 B1Bae Systems Bofors AB
- A Microwave Wave Generator Device With A Virtual Cathode Oscillator And Axial Geometry, Comprising At Least One Reflector And A Magnetic Ring, Configured To Be Supplied By A High-Impedance Generator2 Feb 2017US 2017/0032922 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Microwave generator with virtual cathode oscillator and open reflectors3 Dec 2015US 2015/0348736 A1Commissariat A L'Energie Atomique et Aux Energies Altemativer
- Device for generation of microwaves2 Feb 2012US 2012/0025703 A1Bae Systems Bofors AB
- Device for generation of microwaves28 Jul 2011US 2011/0181460 A1Bae Systems Bofors AB
- Device for the generation of microwaves14 Apr 2011US 2011/0084606 A1
Most cited
By later US patents
- High power microwave generator using relativistic electron beam in waveguide drift tube15US 4,345,220 AThe United States of America as represented by the Secretary of the Air Force · 1982
- High-power microwaves from a non-isochronous reflecting electron system (NIRES)11US 4,150,340 AThe United States of America as represented by the Secretary of the Navy · 1979
- High power millimeter-wave source10US 4,553,068 AThe United States of America as represented by the Secretary of the Army · 1985
- Microwave generation by virtual cathode with phase velocity matching4US 4,745,336 AGA Technologies Inc. · 1988
- Virtual cathode microwave generator having annular anode slit3US 4,730,170 AThe United States of America as represented by the Department of Energy · 1988