H01Q 21/225
Finite focus antenna arrays
Official title: {Finite focus antenna arrays}
H01Q21/225 (Finite focus antenna arrays) appears on 20 US grants and 22 published applications in this corpus.
Search patents in H01Q- Granted patents
- 20
- Published applications
- 22
- Assignees
- 14
- Inventors
- 31
- Latest grant
- 3 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 2 | 2 |
| 2015 | 2 | 3 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 5 |
| 2019 | 3 | 3 |
| 2020 | 2 | 2 |
| 2021 | 2 | 0 |
| 2022 | 2 | 1 |
| 2023 | 3 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Smart RF lensing: efficient, dynamic and mobile wireless power transfer3 Jun 2025US 12,322,869 B2California Institute of Technology
- Generator unit for wireless power transfer12 Dec 2023US 11,843,260 B2California Institute of Technology
- Smart RF lensing: efficient, dynamic and mobile wireless power transfer28 Mar 2023US 11,616,401 B2California Institute of Technology
- Smart RF lensing: efficient, dynamic and mobile wireless power transfer28 Mar 2023US 11,616,402 B2California Institute of Technology
- Smart RF lensing: efficient, dynamic and mobile wireless power transfer15 Nov 2022US 11,502,552 B2California Institute of Technology
- Smart rf lensing: efficient, dynamic and mobile wireless power transfer27 Jul 2023US 2023/0238713 A1California Institute of Technology
- Generator unit for wireless power transfer1 Sep 2022US 2022/0278559 A1California Institute of Technology
- Lens, lens antenna, remote radio unit, and base station19 Nov 2020US 2020/0365997 A1Huawei Technologies Co., Ltd.
- Generator unit for wireless power transfer20 Feb 2020US 2020/0059117 A9California Institute of Technology
- Method and apparatus for wireless power delivery tracking11 Jul 2019US 2019/0214855 A1Auspion, Inc.
Most cited
By later US patents
- Systems and methods for near field target simulation16US 9,151,828 B2Technology Service Corporation · 2015
- Generator unit for wireless power transfer11US 10,320,242 B2California Institute of Technology · 2019
- Method and apparatus for dynamic RF lens focusing and tracking of wireless power recovery unit8US 10,720,797 B2California Institute of Technology · 2020
- Reader based on RFID5US 8,451,125 B2LS Industrial Systems Co., Ltd. · 2013
- Smart RF lensing: efficient, dynamic and mobile wireless power transfer4US 10,367,380 B2California Institute of Technology · 2019