H01P 1/205
Comb or interdigital filters
Official title: Comb or interdigital filters; Cascaded coaxial cavities (H01P1/203 takes precedence)
H01P1/205 (Comb or interdigital filters) appears on 998 US grants and 644 published applications in this corpus.
Search patents in H01P- Granted patents
- 998
- Published applications
- 644
- Assignees
- 273
- Inventors
- 1,271
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 14 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 9 | 0 |
| 1985 | 5 | 0 |
| 1986 | 6 | 0 |
| 1987 | 12 | 0 |
| 1988 | 15 | 0 |
| 1989 | 15 | 0 |
| 1990 | 9 | 0 |
| 1991 | 18 | 0 |
| 1992 | 21 | 0 |
| 1993 | 19 | 0 |
| 1994 | 20 | 0 |
| 1995 | 20 | 0 |
| 1996 | 26 | 0 |
| 1997 | 17 | 0 |
| 1998 | 38 | 0 |
| 1999 | 36 | 0 |
| 2000 | 41 | 0 |
| 2001 | 38 | 14 |
| 2002 | 37 | 69 |
| 2003 | 55 | 41 |
| 2004 | 54 | 28 |
| 2005 | 37 | 22 |
| 2006 | 11 | 11 |
| 2007 | 10 | 19 |
| 2008 | 9 | 16 |
| 2009 | 17 | 15 |
| 2010 | 11 | 18 |
| 2011 | 17 | 16 |
| 2012 | 19 | 24 |
| 2013 | 6 | 12 |
| 2014 | 15 | 23 |
| 2015 | 28 | 26 |
| 2016 | 24 | 24 |
| 2017 | 25 | 28 |
| 2018 | 34 | 40 |
| 2019 | 31 | 17 |
| 2020 | 28 | 29 |
| 2021 | 25 | 20 |
| 2022 | 17 | 34 |
| 2023 | 10 | 26 |
| 2024 | 26 | 31 |
| 2025 | 34 | 29 |
| 2026 | 18 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cavity filter assembly28 Jul 2026US 12,695,194 B2Kmw Inc.
- Hybrid type filter solution14 Jul 2026US 12,683,259 B2Telefonaktiebolaget LM Ericsson (publ)
- Filters including detuned box section resonator configurations and/or resonators having beveled top surfaces16 Jun 2026US 12,658,544 B2CommScope Italy S.r.l.
- Filter device and radio frequency front end circuit2 Jun 2026US 12,647,089 B2Murata Manufacturing Co., Ltd.
- Filter device and radio-frequency front-end circuit equipped with the same12 May 2026US 12,627,019 B2Murata Manufacturing Co., Ltd.
- Cavity Filter and Communication Device1 Oct 2026US 2026/0302582 A1
- Filter, antenna apparatus, and communication device20 Aug 2026US 2026/0246129 A1Huawei Technologies Co., Ltd.
- Antenna assembly25 Jun 2026US 2026/0180193 A1Nokia Solutions and Networks Oy
- Filter For Communication Device18 Jun 2026US 2026/0171640 A1Kmw Inc.
- Air cavity and ceramic waveguide (cwg) resonator mixed filter solution28 May 2026US 2026/0149156 A1Telefonaktiebolaget LM Ericsson (publ)
Most cited
By later US patents
- System and method for dual-band antenna matching340US 7,180,467 B2Kyocera Wireless Corp. · 2007
- Tunable horn antenna238US 6,867,744 B2Kyocera Wireless Corp. · 2005
- Ceramic bandpass filter178US 4,431,977 AMotorola, Inc. · 1984
- Tunable matching circuit154US 6,825,818 B2Kyocera Wireless Corp. · 2004
- Tunable antenna matching circuit139US 6,765,540 B2Kyocera Wireless Corp. · 2004