H01Q 1/248
Provided with an ac/dc converting device
Official title: {provided with an AC/DC converting device, e.g. rectennas}
H01Q1/248 (Provided with an ac/dc converting device) appears on 388 US grants and 458 published applications in this corpus.
Search patents in H01Q- Granted patents
- 388
- Published applications
- 458
- Assignees
- 246
- Inventors
- 773
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 3 | 2 |
| 2004 | 4 | 5 |
| 2005 | 3 | 7 |
| 2006 | 7 | 6 |
| 2007 | 5 | 11 |
| 2008 | 1 | 10 |
| 2009 | 4 | 21 |
| 2010 | 8 | 27 |
| 2011 | 15 | 22 |
| 2012 | 20 | 26 |
| 2013 | 23 | 21 |
| 2014 | 19 | 18 |
| 2015 | 17 | 17 |
| 2016 | 12 | 24 |
| 2017 | 21 | 22 |
| 2018 | 28 | 40 |
| 2019 | 33 | 27 |
| 2020 | 26 | 33 |
| 2021 | 31 | 19 |
| 2022 | 21 | 18 |
| 2023 | 18 | 22 |
| 2024 | 18 | 23 |
| 2025 | 18 | 18 |
| 2026 | 7 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Energy harvesting circuits and associated methods636US 6,856,291 B2University of Pittsburgh—Of the Commonwealth System of Higher Education · 2005
- Wireless energy transfer, including interference enhancement398US 8,076,801 B2Massachusetts Institute of Technology · 2011
- Energy-harvesting system, apparatus and methods398US 8,968,296 B2Covidien LP · 2015
- Wireless power transmission for electronic devices351US 8,278,784 B2QUALCOMM Incorporated · 2012
- Method and apparatus for implementation of a wireless power supply307US 7,812,771 B2Powercast Corporation · 2010