H03H 7/24
Frequency- independent attenuators
H03H7/24 (Frequency- independent attenuators) appears on 417 US grants and 327 published applications in this corpus.
Search patents in H03H- Granted patents
- 417
- Published applications
- 327
- Assignees
- 221
- Inventors
- 697
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 7 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 3 |
| 2002 | 7 | 6 |
| 2003 | 8 | 12 |
| 2004 | 1 | 9 |
| 2005 | 10 | 12 |
| 2006 | 10 | 9 |
| 2007 | 11 | 21 |
| 2008 | 10 | 11 |
| 2009 | 22 | 17 |
| 2010 | 10 | 8 |
| 2011 | 10 | 10 |
| 2012 | 9 | 10 |
| 2013 | 8 | 10 |
| 2014 | 10 | 12 |
| 2015 | 12 | 11 |
| 2016 | 20 | 20 |
| 2017 | 15 | 17 |
| 2018 | 18 | 23 |
| 2019 | 27 | 16 |
| 2020 | 17 | 16 |
| 2021 | 10 | 7 |
| 2022 | 9 | 18 |
| 2023 | 9 | 16 |
| 2024 | 15 | 15 |
| 2025 | 15 | 12 |
| 2026 | 12 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Differential digital step attenuators with leakage cancellation8 Sep 2026US 12,732,149 B2BAE Systems Information and Electronic Systems Integration Inc.
- Digital step attenuator with a diversion circuit for high-frequency signal11 Aug 2026US 12,706,597 B2Mediatek Inc.
- Systems and methods for frequency equalization and temperature compensation in radio frequency devices26 May 2026US 12,640,701 B2Smiths Interconnect Americas, Inc.
- Multi-level digital step attenuator and digital step attenuation device12 May 2026US 12,627,281 B2Mediatek Inc.
- Variable attenuator5 May 2026US 12,620,976 B2Mitsubishi Electric Corporation
- Multi-level digital step attenuator and digital step attenuation device20 Aug 2026US 2026/0246452 A1Mediatek Inc.
- Glitch reduction in phase shifters30 Jul 2026US 2026/0221958 A1pSemi Corporation
- Circuit and System With a Plurality of Digital Attenuator Parts18 Jun 2026US 2026/0173277 A1NXP B. V.
- Phase shift attenuation circuits, phase shift attenuation network and radio frequency microwave systems11 Jun 2026US 2026/0163556 A1Etra Semiconductor (Suzhou) Co., Ltd.
- Interstage matching network attenuator19 Mar 2026US 2026/0081576 A1Intel Corporation
Most cited
By later US patents
- System and method for providing a low power receiver design114US 6,377,315 B1Broadcom Corporation · 2002
- Electronically reconfigurable digital pad attenuator using segmented field effect transistors90US 5,049,841 AGeneral Electric Company · 1991
- Variable microwave attenuator86US 4,009,456 AGeneral Microwave Corporation · 1977
- System and method for on-chip filter tuning78US 6,285,865 B1Broadcom Corporation · 2001
- Integrated switchless programmable attenuator and low noise amplifier57US 6,879,816 B2Broadcom Corporation · 2005