G01R 19/145
Indicating the presence of current or voltage
G01R19/145 (Indicating the presence of current or voltage) appears on 780 US grants and 541 published applications in this corpus.
Search patents in G01R- Granted patents
- 780
- Published applications
- 541
- Assignees
- 460
- Inventors
- 1,438
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 25 | 0 |
| 1977 | 30 | 0 |
| 1978 | 20 | 0 |
| 1979 | 14 | 0 |
| 1980 | 15 | 0 |
| 1981 | 16 | 0 |
| 1982 | 13 | 0 |
| 1983 | 8 | 0 |
| 1984 | 12 | 0 |
| 1985 | 20 | 0 |
| 1986 | 17 | 0 |
| 1987 | 16 | 0 |
| 1988 | 14 | 0 |
| 1989 | 16 | 0 |
| 1990 | 6 | 0 |
| 1991 | 12 | 0 |
| 1992 | 10 | 0 |
| 1993 | 2 | 0 |
| 1994 | 9 | 0 |
| 1995 | 8 | 0 |
| 1996 | 11 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 11 | 6 |
| 2002 | 4 | 3 |
| 2003 | 8 | 4 |
| 2004 | 7 | 10 |
| 2005 | 8 | 11 |
| 2006 | 8 | 7 |
| 2007 | 3 | 5 |
| 2008 | 5 | 6 |
| 2009 | 1 | 11 |
| 2010 | 4 | 10 |
| 2011 | 6 | 10 |
| 2012 | 11 | 10 |
| 2013 | 11 | 33 |
| 2014 | 20 | 25 |
| 2015 | 26 | 33 |
| 2016 | 23 | 26 |
| 2017 | 27 | 31 |
| 2018 | 24 | 33 |
| 2019 | 43 | 47 |
| 2020 | 43 | 44 |
| 2021 | 38 | 26 |
| 2022 | 34 | 37 |
| 2023 | 22 | 32 |
| 2024 | 24 | 29 |
| 2025 | 30 | 33 |
| 2026 | 20 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Voltage detection devices and systems29 Sep 2026US 12,745,815 B2Milwaukee Electric Tool Corporation
- Energy detection warning device1 Sep 2026US 12,724,044 B2Safeguard Equipment, Inc.
- Multi-path current difference detection device14 Jul 2026US 12,681,055 B2Delta Electronics, Inc.
- Apparatus, methods, and techniques of display for obscured feature detection with live wire detection2 Jun 2026US 12,644,915 B2Franklin Sensors Inc.
- System and method for controlling an electrical receptacle2 Jun 2026US 12,646,922 B2Hubbell Incorporated
- System and method for controlling an electrical receptacle17 Sep 2026US 2026/0280272 A1
- Electrical connector and method of absence of voltage test10 Sep 2026US 2026/0269510 A1Caterpillar Inc.
- Current detection arrangement for electric grids23 Jul 2026US 2026/0211013 A1
- Wearable electric field detector9 Jul 2026US 2026/0194565 A1Emerson Professional Tools, LLC
- Artificial intelligence-based stray voltage detection system9 Jul 2026US 2026/0196049 A1Osmose Utilities Services, Inc.
Most cited
By later US patents
- Dynamic sense amplifier for CMOS static RAM531US 4,843,264 AVisic, Inc. · 1989
- System for rating electric power transmission lines and equipment329US 5,341,088 A1994
- Power management system217US 8,674,823 B1Plug ID, LLC. · 2014
- Hand held voltage detection probe106US 7,030,599 B2Santronics, Inc. · 2006
- System for rating electric power transmission lines and equipment101US 4,728,887 A1988