H05H 1/28
Cooling arrangements
H05H1/28 (Cooling arrangements) appears on 279 US grants and 225 published applications in this corpus.
Search patents in H05H- Granted patents
- 279
- Published applications
- 225
- Assignees
- 147
- Inventors
- 522
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 8 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 6 | 0 |
| 1991 | 1 | 0 |
| 1992 | 8 | 0 |
| 1993 | 8 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 4 |
| 2004 | 1 | 6 |
| 2005 | 4 | 3 |
| 2006 | 7 | 3 |
| 2007 | 1 | 4 |
| 2008 | 2 | 5 |
| 2009 | 1 | 4 |
| 2010 | 1 | 3 |
| 2011 | 0 | 3 |
| 2012 | 4 | 11 |
| 2013 | 3 | 3 |
| 2014 | 13 | 12 |
| 2015 | 10 | 15 |
| 2016 | 11 | 13 |
| 2017 | 11 | 21 |
| 2018 | 11 | 16 |
| 2019 | 11 | 15 |
| 2020 | 23 | 12 |
| 2021 | 18 | 22 |
| 2022 | 6 | 11 |
| 2023 | 7 | 14 |
| 2024 | 17 | 12 |
| 2025 | 13 | 8 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrode for a plasma cutting torch, assembly having said electrode, plasma cutting torch having said electrode, and method for plasma cutting4 Aug 2026US 12,701,648 B1Kjellberg-Stiftung
- Cartridge for a liquid-cooled plasma arc torch10 Mar 2026US 12,575,016 B2Hypertherm, Inc.
- Inductively coupled plasma torch structure with protected injector23 Dec 2025US 12,507,337 B2Elemental Scientific, Inc.
- Plasma spray apparatus and method18 Nov 2025US 12,473,626 B2Lincotek Trento S.P.A.
- IGBT temperature dampening systems and methods11 Nov 2025US 12,471,260 B2The ESAB Group, Inc.
- A hybrid welding system and method with overall electrical insulation and thermal conductivity and cooling26 Mar 2026US 2026/0084250 A1Weldobot Ltd.
- Plasma reactor26 Mar 2026US 2026/0089827 A1Caphenia GmbH
- Nozzle cooling in a plasma arc processing system12 Feb 2026US 2026/0046996 A1Hypertherm, Inc.
- Apparatus and methods for purging cooling liquid conduits in a plasma arc torch22 Jan 2026US 2026/0025903 A1
- Sealed Plasma Torch28 Aug 2025US 2025/0275050 A1Standard BioTools Canada Inc.
Most cited
By later US patents
- High performance induction plasma torch with a water-cooled ceramic confinement tube136US 5,200,595 AUniversite de Sherbrooke · 1993
- Arc torch nozzle shield for plasma117US 5,132,512 AHypertherm, Inc. · 1992
- Plasma arc torch and nozzle assembly104US 4,311,897 AUnion Carbide Corporation · 1982
- Apparatus and process for cooling a plasma arc electrode92US 4,902,871 AHypertherm, Inc. · 1990
- Plasma spray torch81US 4,877,937 ACastolin S.A. · 1989