H01H 2009/523
By using heat pipes
Official title: {by using heat pipes}
H01H2009/523 (By using heat pipes) appears on 38 US grants and 47 published applications in this corpus.
Search patents in H01H- Granted patents
- 38
- Published applications
- 47
- Assignees
- 29
- Inventors
- 134
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 2 |
| 2007 | 1 | 1 |
| 2008 | 1 | 4 |
| 2009 | 2 | 2 |
| 2010 | 2 | 4 |
| 2011 | 2 | 1 |
| 2012 | 3 | 5 |
| 2013 | 2 | 3 |
| 2014 | 4 | 4 |
| 2015 | 2 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 3 |
| 2018 | 3 | 0 |
| 2019 | 1 | 2 |
| 2020 | 2 | 3 |
| 2021 | 1 | 0 |
| 2022 | 1 | 4 |
| 2023 | 2 | 1 |
| 2024 | 2 | 2 |
| 2025 | 1 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Contactor with heat transfer device28 Oct 2025US 12,456,593 B2TE Connectivity Solutions GmbH
- Cooling of power semiconductors1 Oct 2024US 12,107,032 B2ABB Schweiz AG
- Cooling apparatus for a medium voltage or high voltage switchgear12 Mar 2024US 11,927,398 B2ABB Schweiz AG
- Embedded cooling systems utilizing heat pipes19 Dec 2023US 11,849,539 B2Toyota Motor Engineering & Manufacturing North America, Inc.
- Electric pole part apparatus12 Dec 2023US 11,842,877 B2ABB Schweiz AG
- Dual actuation fast mechanical switch7 May 2026US 2026/0128244 A1Georgia Tech Research Corporation
- Circuit breaker for electrical device and electrical system12 Feb 2026US 2026/0045435 A1Schneider Electric Industries SAS
- High voltage electrically insulated thermally conductive bypass heat spreader22 May 2025US 2025/0166940 A1Eaton Intelligent Power Limited
- Liquid-cooling radiating pipe and vacuum interrupter with built-in liquid-cooling radiating pipe11 Jul 2024US 2024/0234058 A9Sichuan University
- Liquid-cooling radiating pipe and vacuum interrupter with built-in liquid-cooling radiating pipe25 Apr 2024US 2024/0136131 A1Sichuan University
Most cited
By later US patents
- Vacuum-type circuit interrupters having heat-dissipating devices associated with the contact structures thereof62US 4,005,297 AWestinghouse Electric Corp. · 1977
- Vapor-cooled terminal-bushings for oil-type circuit-interrupters24US 4,123,618 AWestinghouse Electric Corp. · 1978
- Switch gear and method of manufacturing thereof19US 6,897,396 B2Kabushiki Kaisha Toshiba · 2005
- Electrical contactor arrangement with thermal management15US 9,153,946 B2Hamilton Sundstrand Corporation · 2015
- High voltage circuit breaker with cooling10US 7,253,379 B2ABB Research Ltd. · 2007