G01R 31/1245
Of line insulators or spacers
Official title: {of line insulators or spacers, e.g. ceramic overhead line cap insulators; of insulators in HV bushings}
G01R31/1245 (Of line insulators or spacers) appears on 76 US grants and 73 published applications in this corpus.
Search patents in G01R- Granted patents
- 76
- Published applications
- 73
- Assignees
- 76
- Inventors
- 289
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 3 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 3 |
| 2011 | 1 | 5 |
| 2012 | 5 | 1 |
| 2013 | 1 | 4 |
| 2014 | 0 | 1 |
| 2015 | 3 | 3 |
| 2016 | 3 | 4 |
| 2017 | 1 | 3 |
| 2018 | 7 | 6 |
| 2019 | 5 | 3 |
| 2020 | 1 | 5 |
| 2021 | 6 | 8 |
| 2022 | 7 | 4 |
| 2023 | 4 | 4 |
| 2024 | 4 | 7 |
| 2025 | 4 | 4 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Bushing and a method for monitoring of the bushing4 Aug 2026US 12,699,152 B2HSP Hochspannunsgeräte GmbH
- System and method for remote inspection of equipment mechanical dial gauge readings, electrical termination and bushing condition monitoring13 Jan 2026US 12,525,120 B2Aderis Energy, LLC
- Shielding-type insulation detection structure4 Nov 2025US 12,461,137 B2Delta Electronics (Shanghai) Co., Ltd.
- Defect detection method and apparatus for cushion layer of cable, device, and storage medium12 Aug 2025US 12,385,966 B2Electric Power Science & Research Institute of State Grid Tianjin Electric Power Company
- Charging controller and vehicle24 Jun 2025US 12,341,367 B2Toyota Jidosha Kabushiki Kaisha
- System and method for remote inspection of equipment mechanical dial gauge readings, electrical termination and bushing condition monitoring25 Jun 2026US 2026/0179473 A1Aderis Energy, LLC
- Modular Pole Assembly for Overhead Line Systems4 Sep 2025US 2025/0279254 A1ABB Schweiz AG
- Shielding-type insulation detection structure21 Aug 2025US 2025/0264516 A9Delta Electronics (Shanghai) Co., Ltd.
- Automated electrical characterization on HV cable peeling29 May 2025US 2025/0172605 A1
- Electrical isolator30 Jan 2025US 2025/0037908 A1Eb Rebosio S.R.L.
Most cited
By later US patents
- Insulation power factor alarm monitor53US 4,757,263 ATennessee Valley Authority · 1988
- Device for sensing of electric discharges in a test object35US 5,933,012 AABB Research Ltd. · 1999
- Remote contamination sensing device for determining contamination on insulation of power lines and substations30US 5,764,065 A1998
- Method for utilizing a spherical dipole probe for detecting faults in high voltage transmission line insulators25US 4,758,792 ASouthwest Research Institute · 1988
- Electrical system with a stand-off insulator-sensor for on-line partial discharge monitoring of the state of high-voltage insulation16US 6,489,782 B1Eaton Corporation · 2002