G01R 19/16561
In hand-held circuit testers
Official title: {in hand-held circuit testers (see also G01R19/155)}
G01R19/16561 (In hand-held circuit testers) appears on 30 US grants and 27 published applications in this corpus.
Search patents in G01R- Granted patents
- 30
- Published applications
- 27
- Assignees
- 24
- Inventors
- 70
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 3 |
| 2018 | 0 | 0 |
| 2019 | 5 | 4 |
| 2020 | 0 | 0 |
| 2021 | 2 | 1 |
| 2022 | 2 | 3 |
| 2023 | 1 | 3 |
| 2024 | 1 | 1 |
| 2025 | 1 | 5 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus, methods, and techniques of display for obscured feature detection with live wire detection2 Jun 2026US 12,644,915 B2Franklin Sensors Inc.
- Method for the automatic monitoring of an electrotechnical work flow, and corresponding device3 Mar 2026US 12,567,285 B2Dehn SE
- Electrical circuit bypass device21 Oct 2025US 12,449,443 B2Ocd Innovations, LLC
- Apparatus, methods, and techniques of display for obscured feature detection with live wire detection5 Mar 2024US 11,921,143 B2Franklin Sensors Inc.
- Current testing device11 Jul 2023US 11,698,395 B1
- Circuit testing device1 May 2025US 2025/0138057 A1
- Absence of Voltage Tester6 Mar 2025US 2025/0076350 A1Grace Technologies, Inc.
- Voltage Sensing Lead Termination6 Mar 2025US 2025/0076351 A1Grace Technologies, Inc.
- Absence of Voltage Tester with Enhanced User Interface6 Mar 2025US 2025/0076352 A1Grace Technologies, Inc.
- Active probe for measuring voltage at high impedances30 Jan 2025US 2025/0035679 A1Ateq
Most cited
By later US patents
- Electrical tester with electrical energizable test probe83US 5,367,250 A1994
- Voltage probe testing device39US 5,672,964 A1997
- DC voltage tester having parallel connected resistive elements in thermal contact with a thermochronic material29US 5,128,616 ADuracell Inc. · 1992
- Portable hand-held voltage sensor with manually adjustable reference voltage for comparison with sensed voltage26US 4,634,971 AFord Motor Company · 1987
- Testing device for indicating an electric voltage and its polarity and for continuity testing23US 4,527,118 ASiemens Aktiengesellschaft · 1985