H01H 1/0015
Means for testing or for inspecting contacts
Official title: {Means for testing or for inspecting contacts, e.g. wear indicator (measuring circuits G01R31/3274)}
H01H1/0015 (Means for testing or for inspecting contacts) appears on 282 US grants and 274 published applications in this corpus.
Search patents in H01H- Granted patents
- 282
- Published applications
- 274
- Assignees
- 131
- Inventors
- 625
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 9 | 5 |
| 2002 | 7 | 2 |
| 2003 | 2 | 1 |
| 2004 | 5 | 7 |
| 2005 | 3 | 9 |
| 2006 | 9 | 4 |
| 2007 | 3 | 5 |
| 2008 | 4 | 14 |
| 2009 | 1 | 9 |
| 2010 | 8 | 5 |
| 2011 | 6 | 2 |
| 2012 | 8 | 7 |
| 2013 | 0 | 9 |
| 2014 | 7 | 11 |
| 2015 | 13 | 11 |
| 2016 | 11 | 11 |
| 2017 | 15 | 11 |
| 2018 | 8 | 11 |
| 2019 | 11 | 10 |
| 2020 | 16 | 26 |
| 2021 | 14 | 16 |
| 2022 | 22 | 28 |
| 2023 | 20 | 19 |
| 2024 | 24 | 9 |
| 2025 | 10 | 15 |
| 2026 | 4 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Warewash machine or other food equipment machine with contactor monitoring system11 Aug 2026US 12,706,254 B2Illinois Tool Works Inc.
- Electric power disconnect switch with integrated bypass switch17 Feb 2026US 12,555,723 B2Southern States, LLC
- Wear indicator system6 Jan 2026US 12,518,611 B2Transportation IP Holdings, LLC
- Method for detecting the switching state of a switching contact of an electromechanical switching device, the switching contact having at least one pair of contacts, and circuit assembly for detecting the switching state6 Jan 2026US 12,518,938 B2Phoenix Contact GmbH & Co.KG
- Contactor monitoring2 Dec 2025US 12,488,949 B2ABB Schweiz AG
- Compact recloser23 Jul 2026US 2026/0213108 A1
- Method for diagnosing a circuit breaker and associated computer program25 Jun 2026US 2026/0177618 A1Schneider Electric Industries SAS
- Micro-electromechanical switch systems with self-testing capability25 Jun 2026US 2026/0177619 A1Analog Devices International Unlimited Company
- Micro-electromechanical switch systems with diagnostic capability using digital model25 Jun 2026US 2026/0177620 A1Analog Devices International Unlimited Company
- Systems with self-prognosis and control capability using micro-electromechanical switch25 Jun 2026US 2026/0179859 A1Analog Devices International Unlimited Company
Most cited
By later US patents
- Method for determining wear and other characteristics of electrodes in high voltage equipment118US 6,448,758 B1General Electric Company · 2002
- Molded case circuit breaker with removable arc chutes and disengageable transmission system between the operating mechanism and the poles116US 4,764,650 AMerlin Gerin · 1988
- Solid-state trip unit of an electrical circuit breaker with contact wear indicator111US 4,780,786 AMerlin Gerin · 1988
- Circuit breaker99US 5,581,219 AFuji Electric Co., Ltd. · 1996
- Circuit breaker fitted with a device for indicating a short circuit92US 4,375,022 AAlsthom-Unelec · 1983