H01Q 9/145
By varying the electrical length
Official title: {by varying the electrical length}
H01Q9/145 (By varying the electrical length) appears on 271 US grants and 270 published applications in this corpus.
Search patents in H01Q- Granted patents
- 271
- Published applications
- 270
- Assignees
- 170
- Inventors
- 564
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 5 |
| 2005 | 1 | 3 |
| 2006 | 3 | 6 |
| 2007 | 2 | 10 |
| 2008 | 6 | 21 |
| 2009 | 11 | 16 |
| 2010 | 15 | 18 |
| 2011 | 9 | 14 |
| 2012 | 13 | 29 |
| 2013 | 17 | 17 |
| 2014 | 21 | 18 |
| 2015 | 14 | 35 |
| 2016 | 20 | 18 |
| 2017 | 20 | 13 |
| 2018 | 19 | 15 |
| 2019 | 17 | 12 |
| 2020 | 10 | 9 |
| 2021 | 9 | 4 |
| 2022 | 5 | 2 |
| 2023 | 1 | 2 |
| 2024 | 3 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- System and method of optical antenna tuning26 Aug 2025US 12,401,126 B2AT&T Intellectual Property I, L. P.
- Tunable antenna system for Bluetooth and Wi-Fi bands with electronically-reconfigurable and mechanically-identical antennas3 Dec 2024US 12,160,053 B2Plume Design, Inc.
- Systems for receiving electromagnetic energy using antennas that are minimally affected by the presence of the human body29 Oct 2024US 12,132,261 B2Energous Corporation
- System and method of optical antenna tuning9 Jul 2024US 12,034,233 B2AT&T Intellectual Property I, L. P.
- Tunable antenna system for Bluetooth and Wi-Fi bands with electronically-reconfigurable and mechanically-identical antennas16 May 2023US 11,652,293 B2Plume Design, Inc.
- Tunable antenna system for bluetooth and wi-fi bands with electronically-reconfigurable and mechanically-identical antennas13 Feb 2025US 2025/0055192 A1Plume Design, Inc.
- System and method of optical antenna tuning3 Oct 2024US 2024/0332805 A1AT&T Intellectual Property I, L. P.
- Tunable antenna system for bluetooth and wi-fi bands with electronically-reconfigurable and mechanically-identical antennas3 Aug 2023US 2023/0246336 A1Plume Design, Inc.
- Systems for receiving electromagnetic energy using antennas that are minimally affected by the presence of the human body9 Mar 2023US 2023/0076710 A1Energous Corporation
- Antenna device21 Apr 2022US 2022/0123481 A1Tyco Electronics AMP Korea Co., Ltd.
Most cited
By later US patents
- Variable mutual transductance tuned antenna187US 4,280,129 A1981
- Adaptively tunable antennas incorporating an external probe to monitor radiated power185US 8,125,399 B2Paratek Microwave, Inc. · 2012
- Tunable multiband multiport antennas and method174US 9,325,067 B2BlackBerry Limited · 2016
- Antenna with active elements149US 7,830,320 B2Ethertronics, Inc. · 2010
- Adjustable multiband antenna and methods95US 8,564,485 B2Pulse Finland Oy · 2013