H03B 5/30
Generation of oscillations using amplifier with regenerative feedback from output to input
Official title: with frequency-determining element being electromechanical resonator
H03B5/30 (Generation of oscillations using amplifier with regenerative feedback from output to input) appears on 2,357 US grants and 1,939 published applications in this corpus.
Search patents in H03B- Granted patents
- 2,357
- Published applications
- 1,939
- Assignees
- 649
- Inventors
- 3,001
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 20 | 0 |
| 1978 | 21 | 0 |
| 1979 | 13 | 0 |
| 1980 | 13 | 0 |
| 1981 | 18 | 0 |
| 1982 | 10 | 0 |
| 1983 | 5 | 0 |
| 1984 | 10 | 0 |
| 1985 | 16 | 0 |
| 1986 | 25 | 0 |
| 1987 | 14 | 0 |
| 1988 | 16 | 0 |
| 1989 | 23 | 0 |
| 1990 | 13 | 0 |
| 1991 | 22 | 0 |
| 1992 | 19 | 0 |
| 1993 | 16 | 0 |
| 1994 | 13 | 0 |
| 1995 | 15 | 0 |
| 1996 | 19 | 0 |
| 1997 | 17 | 0 |
| 1998 | 29 | 0 |
| 1999 | 31 | 0 |
| 2000 | 16 | 0 |
| 2001 | 39 | 15 |
| 2002 | 22 | 56 |
| 2003 | 49 | 60 |
| 2004 | 70 | 60 |
| 2005 | 55 | 67 |
| 2006 | 56 | 85 |
| 2007 | 69 | 59 |
| 2008 | 53 | 69 |
| 2009 | 49 | 62 |
| 2010 | 69 | 51 |
| 2011 | 41 | 68 |
| 2012 | 54 | 66 |
| 2013 | 60 | 65 |
| 2014 | 77 | 115 |
| 2015 | 118 | 104 |
| 2016 | 142 | 108 |
| 2017 | 81 | 119 |
| 2018 | 68 | 105 |
| 2019 | 129 | 100 |
| 2020 | 154 | 127 |
| 2021 | 100 | 60 |
| 2022 | 86 | 88 |
| 2023 | 82 | 77 |
| 2024 | 74 | 74 |
| 2025 | 71 | 47 |
| 2026 | 51 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Circuit apparatus and oscillator8 Sep 2026US 12,732,135 B2Seiko Epson Corporation
- Low-noise crystal oscillator using self-timed intermittent DC coupling for biasing8 Sep 2026US 12,732,136 B2Realtek Semiconductor Corp.
- Analog amplitude control circuit to optimize drive level of crystal oscillator8 Sep 2026US 12,732,146 B1Synopsys, Inc.
- Crystal oscillator1 Oct 2026US 2026/0303018 A1STMicroelectronics International N. V.
- Crystal oscillator1 Oct 2026US 2026/0303019 A1STMicroelectronics International N. V.
- Oscillator24 Sep 2026US 2026/0291434 A1Seiko Epson Corporation
- Piezoelectric Vibration Device24 Sep 2026US 2026/0291437 A1Daishinku Corporation
- Low phase noise signal generation circuitry24 Sep 2026US 2026/0291438 A1NXP USA, Inc.
Most cited
By later US patents
- Ultrasonic wave oscillator circuit with output meter350US 4,302,728 AOhtake Works Company, Ltd. · 1981
- System and method for dual-band antenna matching340US 7,180,467 B2Kyocera Wireless Corp. · 2007
- Transmitter of the telemetry device of an implant249US 6,490,487 B1Biotronki Mess - und Therapiegeraete GmbH & Co. Ingenieurbuero Berlin · 2002
- Tunable horn antenna238US 6,867,744 B2Kyocera Wireless Corp. · 2005
- Configuring digital functions in a digital configurable macro architecture193US 6,603,330 B1Cypress Semiconductor Corporation · 2003