H01P 1/20372
Hairpin resonators
Official title: {Hairpin resonators}
H01P1/20372 (Hairpin resonators) appears on 86 US grants and 83 published applications in this corpus.
Search patents in H01P- Granted patents
- 86
- Published applications
- 83
- Assignees
- 67
- Inventors
- 204
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 4 |
| 2003 | 6 | 4 |
| 2004 | 4 | 4 |
| 2005 | 1 | 2 |
| 2006 | 3 | 6 |
| 2007 | 3 | 5 |
| 2008 | 4 | 7 |
| 2009 | 3 | 1 |
| 2010 | 2 | 6 |
| 2011 | 8 | 5 |
| 2012 | 3 | 5 |
| 2013 | 2 | 2 |
| 2014 | 1 | 2 |
| 2015 | 1 | 1 |
| 2016 | 3 | 3 |
| 2017 | 2 | 2 |
| 2018 | 3 | 4 |
| 2019 | 2 | 1 |
| 2020 | 2 | 7 |
| 2021 | 2 | 1 |
| 2022 | 5 | 5 |
| 2023 | 1 | 3 |
| 2024 | 3 | 0 |
| 2025 | 5 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Package antenna apparatus and wireless communication apparatus7 Apr 2026US 12,597,696 B2Huawei Technologies Co., Ltd.
- RF filters and multiplexers manufactured in the core of a package substrate using glass core technology23 Sep 2025US 12,424,716 B2Intel Corporation
- Radio frequency pass-band filter1 Apr 2025US 12,266,839 B2European Space Agency
- Plane filter4 Mar 2025US 12,244,046 B2Kabushiki Kaisha Toshiba
- Multi-layered band-pass filter device4 Feb 2025US 12,218,396 B2TDK Corporation
- Distributed element radio frequency filter26 Mar 2026US 2026/0088481 A1Knowles Cazenovia, Inc.
- Contactless high power rf connector16 Jan 2025US 2025/0023288 A1Spinner GmbH
- Planar balun with non-uniform microstrip line width to improve s-parameter alignment22 Jun 2023US 2023/0198114 A1NXP B. V.
- Filter11 May 2023US 2023/0143899 A1TDK Corporation
- Plane filter16 Feb 2023US 2023/0049841 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- High frequency signal combining230US 8,140,113 B2Broadcom Corporation · 2012
- Hybrid resonator microstrip line filters164US 6,597,265 B2Paratek Microwave, Inc. · 2003
- Superconductive planar radio frequency filter having resonators with folded legs59US 6,122,533 ASpectral Solutions, Inc. · 2000
- Stripline tapped-line hairpin filter43US 4,701,727 AGeneral Dynamics, Pomona Division · 1987
- High efficiency coupled line filters40US 6,741,148 B2Harris Corporation · 2004