H03H 7/0138
Electrical filters or coupling circuits
Official title: {Electrical filters or coupling circuits}
H03H7/0138 (Electrical filters or coupling circuits) appears on 287 US grants and 317 published applications in this corpus.
Search patents in H03H- Granted patents
- 287
- Published applications
- 317
- Assignees
- 178
- Inventors
- 524
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 3 |
| 2005 | 1 | 1 |
| 2006 | 2 | 2 |
| 2007 | 1 | 0 |
| 2008 | 2 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 4 |
| 2011 | 1 | 3 |
| 2012 | 1 | 6 |
| 2013 | 2 | 22 |
| 2014 | 15 | 36 |
| 2015 | 28 | 33 |
| 2016 | 38 | 27 |
| 2017 | 33 | 29 |
| 2018 | 41 | 27 |
| 2019 | 18 | 12 |
| 2020 | 16 | 22 |
| 2021 | 18 | 17 |
| 2022 | 19 | 17 |
| 2023 | 14 | 16 |
| 2024 | 10 | 12 |
| 2025 | 13 | 10 |
| 2026 | 12 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Filter and filter module6 Oct 2026US 12,756,374 B2Murata Manufacturing Co., Ltd.
- Multiplexing for filter-banks complexity reduction22 Sep 2026US 12,744,505 B2Qorvo US, Inc.
- Electromagnetic interference filter18 Aug 2026US 12,712,515 B2TE Connectivity Solutions GmbH
- Capacitive coupling isolation device and receiving circuit2 Jun 2026US 12,647,090 B2Lite-On Singapore Pte. Ltd.
- Hybrid acoustic LC filter with harmonic suppression19 May 2026US 12,633,890 B2Skyworks Solutions, Inc.
- Apparatus for long-reach, low-power active copper channels24 Sep 2026US 2026/0292969 A1
- Multiplexer with hybrid acoustic passive filter13 Aug 2026US 2026/0238178 A1Skyworks Solutions, Inc.
- Multilayer common mode filter18 Jun 2026US 2026/0171298 A1Amotech Co., Ltd.
- Integrated coupled resonator filtering16 Apr 2026US 2026/0106598 A1QuantalRF AG
- Synchronization method for wireless power transfer system by detecting voltage transient using a sensor inductor2 Apr 2026US 2026/0095065 A1City University of Hong Kong
Most cited
By later US patents
- Switched multiplexer with flat group delay and channelized limiting162US 10,079,414 B2The United States of America as represented by the Secretary of the Navy · 2018
- Charge sharing analog computation circuitry and applications127US 8,547,272 B2Analog Devices, Inc. · 2013
- Automatic matching method and apparatus126US 3,995,237 ACincinnati Electronics Corporation · 1976
- Electronically variable capacitor and RF matching network incorporating same61US 9,496,122 B1Reno Technologies, Inc. · 2016
- Network filtering circuit for protection lightning surge59US 9,979,370 B2Foxconn Interconnect Technology Limited · 2018