H01P 1/20336
Comb or interdigital filters
Official title: {Comb or interdigital filters}
H01P1/20336 (Comb or interdigital filters) appears on 521 US grants and 456 published applications in this corpus.
Search patents in H01P- Granted patents
- 521
- Published applications
- 456
- Assignees
- 192
- Inventors
- 857
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 15 | 0 |
| 1995 | 6 | 0 |
| 1996 | 8 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 10 | 0 |
| 2000 | 11 | 0 |
| 2001 | 17 | 6 |
| 2002 | 14 | 32 |
| 2003 | 16 | 21 |
| 2004 | 30 | 23 |
| 2005 | 22 | 21 |
| 2006 | 14 | 15 |
| 2007 | 11 | 23 |
| 2008 | 15 | 11 |
| 2009 | 12 | 16 |
| 2010 | 13 | 23 |
| 2011 | 19 | 31 |
| 2012 | 21 | 28 |
| 2013 | 12 | 19 |
| 2014 | 28 | 20 |
| 2015 | 31 | 18 |
| 2016 | 22 | 17 |
| 2017 | 18 | 19 |
| 2018 | 15 | 6 |
| 2019 | 11 | 14 |
| 2020 | 14 | 11 |
| 2021 | 7 | 12 |
| 2022 | 13 | 15 |
| 2023 | 8 | 23 |
| 2024 | 9 | 15 |
| 2025 | 33 | 10 |
| 2026 | 8 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Tunable hybrid EBG-based electronic filter with discrete reactive elements30 Jun 2026US 12,671,158 B1Amazon Technologies, Inc.
- Filter device2 Jun 2026US 12,647,088 B2Murata Manufacturing Co., Ltd.
- Spoiler antenna26 May 2026US 12,640,482 B2Pittsburgh Glass Works, LLC
- Filter device and radio-frequency front-end circuit equipped with the same12 May 2026US 12,627,019 B2Murata Manufacturing Co., Ltd.
- Multilayered filter device24 Mar 2026US 12,586,881 B2TDK Corporation
- Circuits and methods for high frequency filters27 Aug 2026US 2026/0254083 A1Murata Manufacturing Co., Ltd.
- Filter Device25 Jun 2026US 2026/0180553 A1Kmw Inc.
- Filter Structure25 Jun 2026US 2026/0180554 A1Kmw Inc.
- Electromagnetic bandgap filter implemented in pcb with through-hole vias16 Apr 2026US 2026/0106361 A1Amazon Technologies, Inc.
- Antenna filter and electronic device including same in wireless communication system19 Feb 2026US 2026/0051645 A1Samsung Electronics Co., Ltd.
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
- High-frequency transmission line connection structure, circuit board, high-frequency module, and radar device229US 8,159,316 B2KYOCERA Corporation · 2012
- Method of channel frequency allocation for RF and microwave duplexers224US 6,492,883 B2Paratek Microwave, Inc. · 2002
- Microstrip tunable filters tuned by dielectric varactors188US 6,525,630 B1Paratek Microwave, Inc. · 2003