H01H 9/0016
Contact arrangements for tap changers
Official title: {Contact arrangements for tap changers}
H01H9/0016 (Contact arrangements for tap changers) appears on 98 US grants and 96 published applications in this corpus.
Search patents in H01H- Granted patents
- 98
- Published applications
- 96
- Assignees
- 35
- Inventors
- 193
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 1 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 2 |
| 2010 | 3 | 5 |
| 2011 | 4 | 1 |
| 2012 | 3 | 2 |
| 2013 | 0 | 6 |
| 2014 | 1 | 7 |
| 2015 | 9 | 9 |
| 2016 | 6 | 12 |
| 2017 | 10 | 6 |
| 2018 | 6 | 6 |
| 2019 | 11 | 3 |
| 2020 | 1 | 4 |
| 2021 | 3 | 2 |
| 2022 | 2 | 2 |
| 2023 | 2 | 11 |
| 2024 | 5 | 7 |
| 2025 | 8 | 5 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- On-load tap changer and tap-changing transformer having an on-load tap changer29 Sep 2026US 12,749,634 B2Maschinenfabrik Reinhausen GmbH
- Electrical switch for an on-load tap changer5 May 2026US 12,620,535 B2Hitachi Energy Ltd
- On-load tap-changer11 Nov 2025US 12,469,652 B2Maschinenfabrik Reinhausen GmbH
- On-load tap changer and method for actuating an on-load tap changer28 Oct 2025US 12,456,590 B2Maschinenfabrik Reinhausen GmbH
- On-load tap changer and method for actuating an on-load tap changer21 Oct 2025US 12,451,299 B2Maschinenfabrik Reinhausen GmbH
- On-load tap changer and method for operating an on-load tap changer30 Apr 2026US 2026/0120969 A1Hitachi Energy Ltd
- On-load tap-changer25 Dec 2025US 2025/0391617 A1West Journey Corporation
- Tap modification device configured to provide enhanced operating frequency range6 Nov 2025US 2025/0343013 A1Ppc Broadband, Inc.
- An electrical switch for an on-load tap changer21 Aug 2025US 2025/0266216 A1Hitachi Energy Ltd
- No-arc on-load tap changer, switching control method and electrical equipment3 Jul 2025US 2025/0218654 A1
Most cited
By later US patents
- Tap changer12US 6,091,032 AMaschinenfabrik Reinhausen GmbH · 2000
- Step switch with selector12US 6,849,813 B1Maschinenfabrik Reinhausen GmbH · 2005
- On-load tap changer11US 5,523,535 AAsea Brown Boveri AG · 1996
- Step switch8US 5,523,674 AMaschinenfabrik Reinhausen GmbH · 1996
- Mechanical switching contact8US 6,740,831 B2Maschinenfabrik Reinhausen GmbH · 2004