G01D 5/243
Influencing the phase or frequency of ac
Official title: influencing the phase or frequency of AC
G01D5/243 (Influencing the phase or frequency of ac) appears on 185 US grants and 113 published applications in this corpus.
Search patents in G01D- Granted patents
- 185
- Published applications
- 113
- Assignees
- 143
- Inventors
- 375
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 10 | 0 |
| 1988 | 8 | 0 |
| 1989 | 11 | 0 |
| 1990 | 7 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 1 |
| 2005 | 1 | 5 |
| 2006 | 2 | 3 |
| 2007 | 0 | 2 |
| 2008 | 3 | 2 |
| 2009 | 4 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 3 |
| 2014 | 1 | 4 |
| 2015 | 3 | 7 |
| 2016 | 3 | 7 |
| 2017 | 8 | 6 |
| 2018 | 7 | 11 |
| 2019 | 10 | 13 |
| 2020 | 10 | 12 |
| 2021 | 15 | 8 |
| 2022 | 11 | 11 |
| 2023 | 7 | 3 |
| 2024 | 7 | 2 |
| 2025 | 3 | 1 |
| 2026 | 0 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Transponders105US 4,160,971 ANational Research Development Corporation · 1979
- Adjustable output level signal transmitter104US 5,170,414 ASiemens-Pacesetter, Inc. · 1992
- Sensor and transducer apparatus96US 5,589,639 A1996
- Sensor and transducer apparatus81US 4,987,783 A1991
- Sensor and transducer apparatus75US 5,279,163 A1994