G01R 19/175
Indicating the instants of passage of current or voltage through a given
Official title: Indicating the instants of passage of current or voltage through a given value, e.g. passage through zero
G01R19/175 (Indicating the instants of passage of current or voltage through a given) appears on 269 US grants and 242 published applications in this corpus.
Search patents in G01R- Granted patents
- 269
- Published applications
- 242
- Assignees
- 205
- Inventors
- 588
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 4 | 3 |
| 2004 | 0 | 0 |
| 2005 | 3 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 2 |
| 2008 | 2 | 3 |
| 2009 | 1 | 4 |
| 2010 | 4 | 2 |
| 2011 | 5 | 4 |
| 2012 | 1 | 1 |
| 2013 | 2 | 10 |
| 2014 | 5 | 10 |
| 2015 | 8 | 9 |
| 2016 | 13 | 19 |
| 2017 | 18 | 14 |
| 2018 | 15 | 10 |
| 2019 | 11 | 24 |
| 2020 | 21 | 19 |
| 2021 | 18 | 22 |
| 2022 | 26 | 19 |
| 2023 | 22 | 25 |
| 2024 | 18 | 15 |
| 2025 | 15 | 14 |
| 2026 | 11 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Current detection circuit, integrated circuit, and power supply circuit28 Jul 2026US 12,695,382 B2Fuji Electric Co., Ltd.
- Method for fast and accurately sensing power grid information based on nonlinear robust estimation14 Jul 2026US 12,681,058 B2Shandong University
- Zero-crossing detection circuit23 Jun 2026US 12,663,447 B2Rohm Co., Ltd.
- Method and system for calibrating voltage measurements in a system for measuring electrical quantities2 Jun 2026US 12,644,948 B2Schneider Electric Industries SAS
- Magnetic component for an electrical and/or electronic module2 Jun 2026US 12,646,646 B2Robert Bosch GmbH
- Winding switching device and winding switching system1 Oct 2026US 2026/0298988 A1Autonetworks Technologies, Ltd.
- Zero-crossing detection circuit24 Sep 2026US 2026/0287626 A1Rohm Co., Ltd.
- Utility meter with digital inputs and synchronization circuit17 Sep 2026US 2026/0276686 A1
- How to build a replication system and extract replication values25 Jun 2026US 2026/0178153 A1
- Power regulator4 Jun 2026US 2026/0153541 A1Autonics Corporation
Most cited
By later US patents
- Time jitter determining apparatus109US 4,350,879 ACanadian Patents & Dev. Limited · 1982
- Apparatus for measuring the degradation of a sensor time constant63US 4,295,128 AThe University of Tennessee Research Corporation · 1981
- Zero-crossing current detection for modular and robust dynamic wireless power transfer38US 11,218,026 B1Utah State University · 2022
- Diode assisted relay contactor34US 4,360,847 AGeneral Electric Company · 1982
- Highly accurate zero crossings for frequency determination34US 5,373,236 AThe United States of America as represented by the Secretary of the Air Force · 1994