H03D 7/161
All the frequency changers being connected in cascade
Official title: {all the frequency changers being connected in cascade}
H03D7/161 (All the frequency changers being connected in cascade) appears on 533 US grants and 240 published applications in this corpus.
Search patents in H03D- Granted patents
- 533
- Published applications
- 240
- Assignees
- 238
- Inventors
- 784
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 10 | 0 |
| 1986 | 10 | 0 |
| 1987 | 9 | 0 |
| 1988 | 5 | 0 |
| 1989 | 9 | 0 |
| 1990 | 8 | 0 |
| 1991 | 7 | 0 |
| 1992 | 8 | 0 |
| 1993 | 11 | 0 |
| 1994 | 11 | 0 |
| 1995 | 11 | 0 |
| 1996 | 18 | 0 |
| 1997 | 20 | 0 |
| 1998 | 28 | 0 |
| 1999 | 35 | 0 |
| 2000 | 37 | 0 |
| 2001 | 19 | 12 |
| 2002 | 19 | 23 |
| 2003 | 20 | 28 |
| 2004 | 21 | 15 |
| 2005 | 16 | 21 |
| 2006 | 23 | 15 |
| 2007 | 18 | 20 |
| 2008 | 12 | 6 |
| 2009 | 8 | 15 |
| 2010 | 16 | 9 |
| 2011 | 11 | 4 |
| 2012 | 11 | 4 |
| 2013 | 7 | 6 |
| 2014 | 5 | 8 |
| 2015 | 8 | 2 |
| 2016 | 5 | 2 |
| 2017 | 4 | 9 |
| 2018 | 7 | 5 |
| 2019 | 9 | 6 |
| 2020 | 8 | 4 |
| 2021 | 5 | 8 |
| 2022 | 4 | 6 |
| 2023 | 6 | 6 |
| 2024 | 3 | 2 |
| 2025 | 1 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Compact, low-power, high image rejection sideband separation receiver7 Apr 2026US 12,596,081 B2Arizona Board of Regents On Behalfof Arizona State University
- Partial-fractional phase-locked loop with sigma delta modulator and finite impulse response filter19 Aug 2025US 12,395,178 B2
- Sensor interface circuit and sensor module9 Apr 2024US 11,954,555 B2Alps Alpine Co., Ltd.
- Partial-fractional phase-locked loop with sigma delta modulator and finite impulse response filter9 Apr 2024US 11,955,979 B2
- Spur compensation method and system23 Jan 2024US 11,881,877 B2Huawei Technologies Co., Ltd.
- Balun and mixer27 Aug 2026US 2026/0254433 A1Nanjing Milewei Corp
- Partial-Fractional Phase-locked Loop with Sigma Delta Modulator and Finite Impulse Response Filter20 Nov 2025US 2025/0357935 A1Apple Inc.
- Signal processing system and related apparatus18 Sep 2025US 2025/0293907 A1Shenzhen Yinwang Intelligent Technologies Co., Ltd.
- Wideband electronically tunable filter and method24 Apr 2025US 2025/0132749 A1Nanowave Technologies Inc.
- Precision Microwave Frequency Synthesizer And Receiver With Delay Balanced Drift Canceling Loop21 Mar 2024US 2024/0097688 A1Giga-tronics Incorporated
Most cited
By later US patents
- Client-server based remote locator device710US 6,131,067 ASnapTrack, Inc. · 2000
- GPS receiver and method for processing GPS signals593US 5,663,734 APrecision Tracking, Inc. · 1997
- GPS receiver utilizing a communication link582US 5,841,396 ASnapTrack, Inc. · 1998
- GPS receiver utilizing a communication link514US 5,874,914 ASnapTrack, Inc. · 1999
- GPS receiver utilizing a communication link451US 6,064,336 ASnapTrack, Inc. · 2000