H03H 9/6446
By floating multistrip couplers
Official title: {by floating multistrip couplers (H03H9/645, H03H9/6453 take precedence)}
H03H9/6446 (By floating multistrip couplers) appears on 18 US grants and 2 published applications in this corpus.
Search patents in H03H- Granted patents
- 18
- Published applications
- 2
- Assignees
- 10
- Inventors
- 26
- Latest grant
- 22 Nov 2005
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Saw wave-guides22 Nov 2005US 6,967,545 B2
- Surface acoustic wave device and communication apparatus9 Mar 2004US 6,703,760 B2Murata Manufacturing Co., Ltd.
- Surface acoustic wave device and communication apparatus6 Aug 2002US 6,429,569 B1Murata Manufacturing Co., Ltd.
- Surface acoustic wave device3 Oct 2000US 6,127,769 AMurata Manufacturing Co., Ltd.
- Low loss saw filters with non-sequential coupling and method of operation thereof27 Jul 1999US 5,929,724 ACom Dev Ltd.
Most cited
By later US patents
- Cascaded grating resonator filters with external input-output couplers36US 4,155,056 ABell Telephone Laboratories, Incorporated · 1979
- Acoustic surface wave devices21US 4,072,915 AU. S. Philips Corporation · 1978
- Acoustic wave devices21US 4,204,178 AU. S. Philips Corporation · 1980
- Saw resonator filter with a multistrip coupler disposed in the resonator gaps20US 5,363,073 AMotorola, Inc. · 1994
- Surface acoustic wave device20US 6,127,769 AMurata Manufacturing Co., Ltd. · 2000