G01R 25/08
Arrangements for measuring phase angle between a voltage and a current or
Official title: by counting of standard pulses
G01R25/08 (Arrangements for measuring phase angle between a voltage and a current or) appears on 67 US grants and 19 published applications in this corpus.
Search patents in G01R- Granted patents
- 67
- Published applications
- 19
- Assignees
- 58
- Inventors
- 114
- Latest grant
- 22 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 3 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 2 | 0 |
| 2012 | 2 | 3 |
| 2013 | 1 | 3 |
| 2014 | 3 | 1 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 2 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Electronic circuitry, system, base station, mobile device and method22 Jul 2025US 12,368,519 B2Intel Corporation
- Counter unit2 May 2023US 11,640,197 B2OMRON Corporation
- Phase measurement9 Feb 2021US 10,914,772 B2Socionext Inc.
- Phase measurement device and instrument in which phase measurement device is applied28 Apr 2020US 10,634,563 B2National Institute of Advanced Industrial Science and Technology
- Phase detection circuit26 Sep 2017US 9,774,319 B2SK hynix Inc.
- Electronic circuitry, system, base station, mobile device and method11 Apr 2024US 2024/0121015 A1Intel Corporation
- Signal analysis method, and apparatus for three-phase system, and program8 Sep 2022US 2022/0283209 A1NEC Corporation
- Counter unit21 Apr 2022US 2022/0121266 A1OMRON Corporation
- Phase measurement device and instrument in which phase measurement device is applied21 Mar 2019US 2019/0086270 A1National Institute of Advanced Industrial Science and Technology
- Phase measurement31 Jan 2019US 2019/0033355 A1Socionext Inc.
Most cited
By later US patents
- Tracking sample and hold phase detector107US 4,751,468 ATektronix, Inc. · 1988
- Pulse phase difference encoding circuit59US 5,128,624 ANippon Soken, Inc. · 1992
- Delay measuring circuit49US 5,049,766 ANCR Corporation · 1991
- Ring oscillator and pulse phase difference encoding circuit31US 5,416,444 ANippondenso Co., Ltd. · 1995
- Pulse phase difference encoding circuit30US 5,568,071 ANippon Soken, Inc. · 1996