H03B 1/04
Reducing undesired oscillations
Official title: Reducing undesired oscillations, e.g. harmonics
H03B1/04 (Reducing undesired oscillations) appears on 129 US grants and 103 published applications in this corpus.
Search patents in H03B- Granted patents
- 129
- Published applications
- 103
- Assignees
- 85
- Inventors
- 253
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 2 |
| 2002 | 1 | 3 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 3 |
| 2007 | 1 | 1 |
| 2008 | 2 | 2 |
| 2009 | 3 | 1 |
| 2010 | 0 | 4 |
| 2011 | 3 | 0 |
| 2012 | 0 | 0 |
| 2013 | 3 | 10 |
| 2014 | 8 | 8 |
| 2015 | 7 | 3 |
| 2016 | 5 | 5 |
| 2017 | 7 | 13 |
| 2018 | 3 | 14 |
| 2019 | 12 | 6 |
| 2020 | 8 | 7 |
| 2021 | 8 | 3 |
| 2022 | 2 | 4 |
| 2023 | 4 | 5 |
| 2024 | 2 | 0 |
| 2025 | 4 | 5 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Local oscillator amplification with reduced harmonic generation14 Jul 2026US 12,683,549 B2BAE Systems Information and Electronic Systems Integration Inc.
- Voltage controlled oscillator and method2 Jun 2026US 12,647,071 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Oscillator with a multiple pole resonator14 Apr 2026US 12,603,610 B2Anlotek Limited
- Phase noise reduction for voltage-controlled oscillator using harmonic filter4 Nov 2025US 12,463,588 B2QUALCOMM Incorporated
- Method and device for outputting frequency multiplication signal having high harmonic suppression, and storage medium23 Sep 2025US 12,425,009 B2Sanechips Technology Co., Ltd.
- System and method for thz amplification by wavelength injection of resonant tunneling diode oscillator1 Oct 2026US 2026/0303020 A1Imra America, Inc.
- Implicit frequency multiplier2 Jul 2026US 2026/0189222 A1NXP USA, Inc.
- Systems and Methods for Suppressing Noise-Induced Phase Diffusion15 Jan 2026US 2026/0019033 A1The Board of Trustees of the University of Illinois
- Local oscillator amplification with reduced harmonic generation27 Nov 2025US 2025/0364949 A1BAE Systems Information and Electronic Systems Integration Inc.
- Phase noise reduction for voltage-controlled oscillator using harmonic filter30 Oct 2025US 2025/0337357 A1QUALCOMM Incorporated
Most cited
By later US patents
- Frequency converter capable of reducing noise components in local oscillation signals116US 5,634,207 AKabushiki Kaisha Toshiba · 1997
- Apparatus for spreading the spectrum of a signal and method therefor84US 5,491,458 A1996
- Reduction of undesired harmonic components77US 4,811,422 A1989
- High frequency clock generator with multiplexer70US 5,414,308 AWinbond Electronics Corp. · 1995
- Ring oscillator having a substantially sinusoidal signal69US 5,677,650 APMC-Sierra, Inc. · 1997