H01B 17/42
Means for obtaining improved distribution of voltage
Official title: Means for obtaining improved distribution of voltage (capacitor-type lead-through insulators H01B17/28); Protection against arc discharges
H01B17/42 (Means for obtaining improved distribution of voltage) appears on 150 US grants and 105 published applications in this corpus.
Search patents in H01B- Granted patents
- 150
- Published applications
- 105
- Assignees
- 95
- Inventors
- 383
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 2 |
| 2002 | 4 | 2 |
| 2003 | 2 | 1 |
| 2004 | 2 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 3 |
| 2007 | 3 | 2 |
| 2008 | 0 | 1 |
| 2009 | 1 | 4 |
| 2010 | 3 | 6 |
| 2011 | 2 | 7 |
| 2012 | 4 | 2 |
| 2013 | 5 | 8 |
| 2014 | 8 | 5 |
| 2015 | 4 | 7 |
| 2016 | 3 | 4 |
| 2017 | 5 | 5 |
| 2018 | 1 | 6 |
| 2019 | 9 | 7 |
| 2020 | 3 | 5 |
| 2021 | 10 | 10 |
| 2022 | 3 | 2 |
| 2023 | 5 | 6 |
| 2024 | 6 | 3 |
| 2025 | 2 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Composite crossarm and power transmission tower3 Mar 2026US 12,567,729 B2Jiangsu Shemar Electric Co., Ltd.
- High-voltage device and method for increasing the dielectric strength in the high-voltage device20 Jan 2026US 12,531,194 B2Siemens Energy Global GmbH & Co. KG
- Wall bushing29 Jul 2025US 12,374,474 B2Hitachi Energy Ltd
- Electrical wire having leakage current limiting function1 Apr 2025US 12,266,455 B2VISION TECH Corporation
- Method for developing epoxy resin impregnated glass fiber DC bushing19 Nov 2024US 12,148,547 B2Nari Group Corporation
- Spark containment cap plate23 Jul 2026US 2026/0208879 A1Airbus Operations GmbH
- Insulator2 Jul 2026US 2026/0188541 A1NGK Insulators, Ltd.
- Bushing connector cover for high voltage equipment covering clamp handwheel21 May 2026US 2026/0142060 A1Eco Electrical Systems
- Creepage extender system17 Apr 2025US 2025/0125073 A1Barry Cordage Ltd.
- Composite crossarm and power transmission tower6 Mar 2025US 2025/0079819 A1Jiangsu Shemar Electric Co., Ltd.
Most cited
By later US patents
- Method and apparatus for high voltage insulation39US 4,053,707 ACentral Electricity Generating Board · 1977
- Insulator32US 5,446,242 ARaychem Corporation · 1995
- Combination strut insulator and lightning arrester31US 4,467,387 AGeneral Electric Company · 1984
- Suspension insulator25US 4,198,538 AJosyln Mfg. and Supply Co. · 1980
- High voltage bushing with field control material25US 7,262,367 B2ABB Research Ltd. · 2007