H01J 23/46
Loop coupling devices
H01J23/46 (Loop coupling devices) appears on 8 US grants and 1 published applications in this corpus.
Search patents in H01J- Granted patents
- 8
- Published applications
- 1
- Assignees
- 7
- Inventors
- 13
- Latest grant
- 7 May 2002
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Double loop output system for magnetron7 May 2002US 6,384,537 B2Northrop Grumman Corporation
- Inductive output amplifier output cavity structure20 Feb 2001US 6,191,651 B1Litton Systems, Inc.
- Cavity coupling means rotatable in response to linear movement of an actuator16 Feb 1999US 5,872,428 AEEV Limited
- Coaxial transmissioin line input transformer having externally variable eccentricity and position13 Aug 1996US 5,545,949 ALitton Industries, Inc.
- Magnetron for a microwave oven27 Sep 1994US 5,350,905 AGoldstar Co., Ltd.
Most cited
By later US patents
- Coaxial line coupler with fluid cooled inner conductor12US 5,006,825 AThomson-CF · 1991
- Electron beam tube arrangements having primary and secondary output cavities8US 5,239,272 AEEV Limited · 1993
- Coaxial transmissioin line input transformer having externally variable eccentricity and position7US 5,545,949 ALitton Industries, Inc. · 1996
- Magnetron for a microwave oven4US 5,350,905 AGoldstar Co., Ltd. · 1994
- Inductive output amplifier output cavity structure4US 6,191,651 B1Litton Systems, Inc. · 2001