H03H 9/74
Multiple-port networks for connecting several sources or loads, working on the same
Official title: Multiple-port networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source (networks for phase shifting H03H9/66)
H03H9/74 (Multiple-port networks for connecting several sources or loads, working on the same) appears on 46 US grants and 32 published applications in this corpus.
Search patents in H03H- Granted patents
- 46
- Published applications
- 32
- Assignees
- 33
- Inventors
- 96
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 3 | 1 |
| 2010 | 2 | 1 |
| 2011 | 1 | 2 |
| 2012 | 1 | 1 |
| 2013 | 0 | 3 |
| 2014 | 2 | 0 |
| 2015 | 2 | 0 |
| 2016 | 0 | 2 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 3 |
| 2020 | 3 | 4 |
| 2021 | 4 | 4 |
| 2022 | 4 | 2 |
| 2023 | 1 | 2 |
| 2024 | 0 | 2 |
| 2025 | 3 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pin reconfigurable baw filters24 Mar 2026US 12,587,172 B2Qorvo US, Inc.
- Bulk acoustic wave filters for improving noise factor17 Jun 2025US 12,334,908 B2Skyworks Solutions, Inc.
- Acoustic wave device, high frequency front end circuit, and communication apparatus8 Apr 2025US 12,273,094 B2Murata Manufacturing Co., Ltd.
- Filter device comprising two connected filter circuits25 Feb 2025US 12,237,825 B2RF360 Singapore Pte. Ltd.
- Acoustic wave device, high frequency front end circuit, and communication apparatus24 Oct 2023US 11,799,444 B2Murata Manufacturing Co., Ltd.
- High-power acoustic wave filter package capable of self-heat dissipation16 Oct 2025US 2025/0323619 A1Samsung Electronics Co., Ltd.
- Pin reconfigurable baw filters19 Sep 2024US 2024/0313743 A1Qorvo US, Inc.
- Acoustic wave device, high frequency front end circuit, and communication apparatus8 Feb 2024US 2024/0048120 A1Murata Manufacturing Co., Ltd.
- Surface acoustic wave resonators27 Jul 2023US 2023/0238939 A1Skyworks Solutions, Inc.
- Bulk acoustic wave filters for improving noise factor15 Jun 2023US 2023/0188115 A1Skyworks Solutions, Inc.
Most cited
By later US patents
- Surface acoustic wave device employing reflectors38US 4,410,823 AZenith Radio Corporation · 1983
- Tunable surface acoustic wave resonators19US 7,522,016 B2QUALCOMM Incorporated · 2009
- Band reject filters19US 7,777,597 B2Nortel Networks Limited · 2010
- Surface acoustic wave devices13US 3,978,437 ABritish Secretary of State for Defence · 1976
- Acoustic surface wave device having split-isolated or split-connected multistrip coupler13US 3,988,703 AZenith Radio Corporation · 1976