H03D 3/16
By means of electromechanical resonators
Official title: by means of electromechanical resonators
H03D3/16 (By means of electromechanical resonators) appears on 18 US grants and 1 published applications in this corpus.
Search patents in H03D- Granted patents
- 18
- Published applications
- 1
- Assignees
- 13
- Inventors
- 29
- Latest grant
- 6 Apr 2004
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Piezoelectric resonator and FM detection circuit incorporating the same6 Apr 2004US 6,717,328 B2Murata Manufacturing Co., Ltd.
- Piezoelectric vibrator for reduction of undesired vibrations29 Aug 1995US 5,446,429 AMurata Mfg. Co., Ltd.
- Reception circuit for a wave modulated at one time in frequency by an analog signal and at another time in phase by a digital signal15 Apr 1986US 4,583,047 AEtablissement Public de Diffusion dit "Telediffusion de France"
- FM Demodulator with selective phase shift circuits31 Dec 1985US 4,562,404 AMurata Manufacturing Co., Ltd.
- High frequency discriminator with a crystal phase shift network29 Nov 1983US 4,418,320 A
Most cited
By later US patents
- Method and apparatus for extracting derivatives from surface acoustic waves12US 4,056,803 AThe Regents of the University of California · 1977
- Multifrequency control from a single crystal12US 4,227,158 AThe Singer Company · 1980
- Reception circuit for a wave modulated at one time in frequency by an analog signal and at another time in phase by a digital signal11US 4,583,047 AEtablissement Public de Diffusion dit "Telediffusion de France" · 1986
- SWD FM detector and IF filter9US 3,936,751 ATexas Instruments Incorporated · 1976
- FM Demodulator with selective phase shift circuits8US 4,562,404 AMurata Manufacturing Co., Ltd. · 1985