G01R 31/1227
Of components, parts or materials
Official title: {of components, parts or materials (G01R31/1209, G01R31/1218, G01R31/18 take precedence; circuits therefor G01R31/14; testing vessels of electrodes G01R31/16)}
G01R31/1227 (Of components, parts or materials) appears on 1,265 US grants and 1,307 published applications in this corpus.
Search patents in G01R- Granted patents
- 1,265
- Published applications
- 1,307
- Assignees
- 791
- Inventors
- 3,369
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 9 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 8 | 0 |
| 1986 | 8 | 0 |
| 1987 | 4 | 0 |
| 1988 | 10 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 12 | 0 |
| 1993 | 9 | 0 |
| 1994 | 6 | 0 |
| 1995 | 15 | 0 |
| 1996 | 10 | 0 |
| 1997 | 13 | 0 |
| 1998 | 20 | 0 |
| 1999 | 15 | 0 |
| 2000 | 14 | 0 |
| 2001 | 23 | 8 |
| 2002 | 15 | 19 |
| 2003 | 23 | 21 |
| 2004 | 17 | 15 |
| 2005 | 19 | 26 |
| 2006 | 26 | 23 |
| 2007 | 26 | 19 |
| 2008 | 12 | 28 |
| 2009 | 13 | 32 |
| 2010 | 18 | 37 |
| 2011 | 26 | 52 |
| 2012 | 29 | 56 |
| 2013 | 34 | 43 |
| 2014 | 47 | 69 |
| 2015 | 39 | 65 |
| 2016 | 51 | 64 |
| 2017 | 66 | 68 |
| 2018 | 55 | 55 |
| 2019 | 82 | 60 |
| 2020 | 48 | 79 |
| 2021 | 71 | 78 |
| 2022 | 70 | 78 |
| 2023 | 70 | 97 |
| 2024 | 69 | 77 |
| 2025 | 77 | 80 |
| 2026 | 41 | 58 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Battery system, method for diagnosing a battery system6 Oct 2026US 12,754,245 B2Robert Bosch GmbH
- Polyolefin formulation containing combination of voltage stabilizer compounds29 Sep 2026US 12,747,334 B2Dow Global Technologies LLC
- Detection apparatus and target detection and repair system8 Sep 2026US 12,730,139 B2Contemporary Amperex Technology (Hong Kong) Limited
- Automated electrical connector wear monitoring25 Aug 2026US 12,716,925 B2International Business Machines Corporation
- Insulation detection method and apparatus for conversion system25 Aug 2026US 12,716,931 B2Delta Electronics (Shanghai) Co., Ltd.
- Low cost, high accuracy & standards compliant isolation parameter test system and method for semiconductor devices8 Oct 2026US 2026/0309765 A1
- Deterioration diagnosis method and deterioration diagnosis device, for varistor24 Sep 2026US 2026/0287635 A1KYOCERA Document Solutions Inc.
- Insulation monitoring device (imd), system for monitoring insulation and method for monitoring insulation of imd24 Sep 2026US 2026/0291216 A1Ls Electric Co., Ltd.
- Power converter, method and apparatus for insulation detection thereof17 Sep 2026US 2026/0276690 A1Sungrow Power Supply Co., Ltd.
- Method for detecting presence of an electric arc and associated device17 Sep 2026US 2026/0276691 A1Centre National De La Recherche Scientifique
Most cited
By later US patents
- Non-intrusive cable fault detection and methods218US 9,103,864 B2University of South Carolina · 2015
- Method and apparatus for detecting arcing in AC power systems by monitoring high frequency noise203US 5,729,145 ASiemens Energy & Automation, Inc. · 1998
- Method and apparatus for testing surface breakdown of dielectric materials caused by electrical tracking202US 5,638,003 AUnderwriters Laboratories Inc. · 1997
- Method and apparatus for detecting arcing in alternating-current power systems by monitoring high-frequency noise158US 5,434,509 A1995
- Trip indicators for circuit protection devices143US 5,847,913 ASquare D Company · 1998