H03L 7/20
Using a harmonic phase-locked loop, i.e. a loop which can be locked
Official title: using a harmonic phase-locked loop, i.e. a loop which can be locked to one of a number of harmonically related frequencies applied to it (H03L7/22 takes precedence)
H03L7/20 (Using a harmonic phase-locked loop, i.e. a loop which can be locked) appears on 72 US grants and 33 published applications in this corpus.
Search patents in H03L- Granted patents
- 72
- Published applications
- 33
- Assignees
- 53
- Inventors
- 135
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 5 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 3 |
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 3 | 4 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 2 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 2 | 3 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 6 | 4 |
| 2018 | 2 | 1 |
| 2019 | 3 | 2 |
| 2020 | 3 | 3 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Symmetrical resistive harmonic rejection mixer (HRM)27 Jan 2026US 12,537,535 B2QUALCOMM Incorporated
- Low-power, low-noise millimeter wavelength frequency synthesizer27 Apr 2021US 10,992,303 B2The Regents of the University of California
- Harmonic injection locking apparatus, methods, and applications17 Nov 2020US 10,840,925 B1University of Central Florida Research Foundation, Inc.
- Frequency synthesis device with high multiplication rank28 Jul 2020US 10,727,849 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Tunable multi-tone multi-band high-frequency synthesizer for space-borne beacon transmitter for atmospheric radio wave propagation studies18 Feb 2020US 10,564,248 B1The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- Symmetrical resistive harmonic rejection mixer (hrm)23 Apr 2026US 2026/0113047 A1QUALCOMM Incorporated
- Symmetrical resistive harmonic rejection mixer (hrm)28 Mar 2024US 2024/0106445 A1QUALCOMM Incorporated
- Low-power, low-noise millimeter wavelength frequency synthesizer24 Dec 2020US 2020/0403620 A1The Regents of the University of California
- Harmonic injection locking apparatus, methods, and applications19 Nov 2020US 2020/0366301 A1University of Central Florida Research Foundation, Inc.
- Frequency synthesis device with high multiplication rank19 Mar 2020US 2020/0091921 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
Most cited
By later US patents
- Variable frequency synthesizer with reduced phase noise134US 4,602,220 AAdvantest Corporation · 1986
- Multifrequency microwave source105US 4,616,191 ARaytheon Company · 1986
- Frequency synthesizer105US 4,914,405 AMarconi Instruments Limited · 1990
- Phase controlled oscillator79US 6,617,936 B2Velio Communications, Inc. · 2003
- Fractional N/M synthesis48US 5,055,800 AMotorola, Inc. · 1991