H01P 1/201
Filters for transverse electromagnetic waves
Official title: Filters for transverse electromagnetic waves (H01P1/212, H01P1/213, H01P1/215, H01P1/219 take precedence)
H01P1/201 (Filters for transverse electromagnetic waves) appears on 2,853 US grants and 2,250 published applications in this corpus.
Search patents in H01P- Granted patents
- 2,853
- Published applications
- 2,250
- Assignees
- 829
- Inventors
- 4,124
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 7 | 0 |
| 1978 | 7 | 0 |
| 1979 | 5 | 0 |
| 1980 | 11 | 0 |
| 1981 | 25 | 0 |
| 1982 | 11 | 0 |
| 1983 | 8 | 0 |
| 1984 | 21 | 0 |
| 1985 | 13 | 0 |
| 1986 | 16 | 0 |
| 1987 | 20 | 0 |
| 1988 | 21 | 0 |
| 1989 | 26 | 0 |
| 1990 | 18 | 0 |
| 1991 | 38 | 0 |
| 1992 | 40 | 0 |
| 1993 | 32 | 0 |
| 1994 | 49 | 0 |
| 1995 | 41 | 0 |
| 1996 | 51 | 0 |
| 1997 | 36 | 0 |
| 1998 | 66 | 0 |
| 1999 | 66 | 0 |
| 2000 | 84 | 0 |
| 2001 | 90 | 33 |
| 2002 | 80 | 126 |
| 2003 | 124 | 111 |
| 2004 | 112 | 91 |
| 2005 | 83 | 96 |
| 2006 | 53 | 75 |
| 2007 | 62 | 97 |
| 2008 | 71 | 91 |
| 2009 | 69 | 83 |
| 2010 | 68 | 99 |
| 2011 | 73 | 93 |
| 2012 | 85 | 104 |
| 2013 | 59 | 74 |
| 2014 | 87 | 92 |
| 2015 | 107 | 94 |
| 2016 | 94 | 89 |
| 2017 | 113 | 102 |
| 2018 | 100 | 98 |
| 2019 | 95 | 79 |
| 2020 | 99 | 88 |
| 2021 | 74 | 68 |
| 2022 | 63 | 110 |
| 2023 | 56 | 82 |
| 2024 | 75 | 71 |
| 2025 | 94 | 59 |
| 2026 | 52 | 45 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Filter6 Oct 2026US 12,756,081 B2Soshin Electric Co., Ltd.
- Coaxial filter including bent high impedance segments and low impedance segments with bypass grooves29 Sep 2026US 12,749,786 B2Suzhou Luxshare Technology Co., Ltd.
- Metal integrated suspended line (MISL) circuits29 Sep 2026US 12,750,947 B2Tianjin University
- Filter device22 Sep 2026US 12,744,294 B2Murata Manufacturing Co., Ltd.
- Multilayer dielectric substrate and method for manufacturing multilayer dielectric substrate15 Sep 2026US 12,739,968 B2Murata Manufacturing Co., Ltd.
- Cavity Filter and Communication Device1 Oct 2026US 2026/0302582 A1
- Printed filter17 Sep 2026US 2026/0280508 A1Wnc Corporation
- Method and apparatus for supporting optimization of output power in communication system17 Sep 2026US 2026/0280592 A1Samsung Electronics Co., Ltd.
- Circuits and methods for high frequency filters27 Aug 2026US 2026/0254083 A1Murata Manufacturing Co., Ltd.
- Filter, antenna apparatus, and communication device20 Aug 2026US 2026/0246129 A1Huawei Technologies Co., Ltd.
Most cited
By later US patents
- Electromagnetic transmission line elements having a boundary between materials of high and low dielectric constants634US 5,889,449 ASpace Systems/Loral, Inc. · 1999
- System and method for dual-band antenna matching340US 7,180,467 B2Kyocera Wireless Corp. · 2007
- High quality-factor tunable resonator296US 6,452,465 B1M-Squared Filters, LLC · 2002
- Power combiner using tri-plane antennas243US 9,276,304 B2TriQuint Semiconductor, Inc. · 2016
- Tunable horn antenna238US 6,867,744 B2Kyocera Wireless Corp. · 2005