H01P 1/2135
Using strip line filters
Official title: {using strip line filters (H01P1/2131 takes precedence)}
H01P1/2135 (Using strip line filters) appears on 218 US grants and 183 published applications in this corpus.
Search patents in H01P- Granted patents
- 218
- Published applications
- 183
- Assignees
- 116
- Inventors
- 410
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 10 | 0 |
| 2001 | 9 | 6 |
| 2002 | 8 | 13 |
| 2003 | 20 | 12 |
| 2004 | 12 | 8 |
| 2005 | 6 | 7 |
| 2006 | 8 | 4 |
| 2007 | 6 | 4 |
| 2008 | 1 | 4 |
| 2009 | 2 | 11 |
| 2010 | 4 | 12 |
| 2011 | 9 | 13 |
| 2012 | 6 | 7 |
| 2013 | 9 | 4 |
| 2014 | 8 | 6 |
| 2015 | 9 | 5 |
| 2016 | 9 | 12 |
| 2017 | 10 | 11 |
| 2018 | 11 | 7 |
| 2019 | 8 | 7 |
| 2020 | 10 | 8 |
| 2021 | 2 | 4 |
| 2022 | 7 | 9 |
| 2023 | 5 | 0 |
| 2024 | 5 | 3 |
| 2025 | 2 | 3 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Radio frequency filters including filter banks formed by plural resonators that are covered by feed boards1 Sep 2026US 12,725,896 B2CommScope Italy S.r.l.
- Multiplexer and detector11 Aug 2026US 12,706,582 B2Zhejiang Lab
- Multiplexer24 Feb 2026US 12,563,661 B2ASUSTeK COMPUTER INC.
- Filter assemblies, tuning elements and method of tuning a filter30 Sep 2025US RE50,609 E1Outdoor Wireless Networks LLC
- Multi-band filter2 Sep 2025US 12,407,077 B2QuantumZ Inc.
- Radio frequency component, antenna system, and base station25 Jun 2026US 2026/0180602 A1Huawei Technologies Co., Ltd.
- Multiplexer and detector26 Feb 2026US 2026/0058625 A1Zhejiang Lab
- Filtering apparatus, combining apparatus, antenna, and base station12 Feb 2026US 2026/0045693 A1
- Duplexer Circuit Arrangement18 Sep 2025US 2025/0293714 A1RF 360 Singapore Pte. Ltd.
- Radio frequency filters covered by feed boards19 Jun 2025US 2025/0202087 A1CommScope Italy S.r.l.
Most cited
By later US patents
- Arrangement for reducing intermodulation distortion of radio frequency signals101US 6,321,069 B1Nokia Telecommunications Oy · 2001
- Time division multiple access FDD wireless unit and time division multiple access FDD/TDD dual mode wireless unit77US 5,926,466 AMatsushita Electric Industrial Co., Ltd. · 1999
- Dielectric filter with multiple resonators74US 5,719,539 AMatsushita Electric Industrial Co., Ltd. · 1998
- High temperature superconductor mini-filters and mini-multiplexers with self-resonant spiral resonators63US 6,108,569 AE. I. Du Pont de Nemours and Company · 2000
- Liquid crystalline polymer and multilayer polymer-based passive signal processing components for RF/wireless multi-band applications54US 7,795,995 B2Georgia Tech Research Corporation · 2010