H03J 7/20
Where the scanning is accomplished by varying the electrical characteristics of a
Official title: where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element {(H03J7/183 takes precedence)}
H03J7/20 (Where the scanning is accomplished by varying the electrical characteristics of a) appears on 170 US grants and 16 published applications in this corpus.
Search patents in H03J- Granted patents
- 170
- Published applications
- 16
- Assignees
- 77
- Inventors
- 228
- Latest grant
- 11 Oct 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 31 | 0 |
| 1977 | 12 | 0 |
| 1978 | 7 | 0 |
| 1979 | 8 | 0 |
| 1980 | 16 | 0 |
| 1981 | 21 | 0 |
| 1982 | 9 | 0 |
| 1983 | 11 | 0 |
| 1984 | 5 | 0 |
| 1985 | 7 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 4 |
| 2003 | 1 | 1 |
| 2004 | 2 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 2 | 1 |
| 2008 | 1 | 2 |
| 2009 | 0 | 0 |
| 2010 | 2 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Pet monitoring device11 Oct 2022US 11,464,205 B2SureFlap Ltd
- Clockless frequency detector19 Nov 2019US 10,483,921 B2pSemi Corporation
- Digital coherent receiving apparatus13 Sep 2016US 9,444,554 B2Fujitsu Limited
- Digital coherent receiving apparatus11 Feb 2014US 8,649,689 B2Fujitsu Limited
- Intelligent scanning system and method for walkie-talkie devices12 Mar 2013US 8,396,473 B2Symbol Technologies, Inc.
- Pet monitoring device6 Aug 2020US 2020/0245590 A1SureFlap Ltd
- Clockless Frequency Detector29 Nov 2018US 2018/0342986 A1pSemi Corporation
- Digital coherent receiving apparatus30 Jan 2014US 2014/0029959 A1Fujitsu Limited
- Digital coherent receiving apparatus30 Dec 2010US 2010/0329697 A1Fujitsu Limited
- Intelligent Scanning System and Method for Walkie-Talkie Devices18 Sep 2008US 2008/0227412 A1Symbol Technologies, Inc.
Most cited
By later US patents
- Automatic antenna tuning method and apparatus172US 5,301,358 ASeiko Corp. · 1994
- Receiver with a channel swapping apparatus119US 4,271,532 ARCA Corporation · 1981
- Variable ramp speed TV tuning system for rapid channel tuning109US 4,374,437 AZenith Radio Corporation · 1983
- Microcomputer processing approach for a non-volatile TV station memory tuning system66US 4,093,922 ATexas Instruments Incorporated · 1978
- Microcomputer processing approach for a non-volatile TV station memory tuning system65US 4,093,921 ATexas Instruments Incorporated · 1978