H05H 1/3436
Hollow cathodes with internal coolant flow
Official title: {Hollow cathodes with internal coolant flow}
H05H1/3436 (Hollow cathodes with internal coolant flow) appears on 165 US grants and 93 published applications in this corpus.
Search patents in H05H- Granted patents
- 165
- Published applications
- 93
- Assignees
- 63
- Inventors
- 300
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 6 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 8 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 2 |
| 2002 | 4 | 1 |
| 2003 | 0 | 3 |
| 2004 | 1 | 9 |
| 2005 | 5 | 3 |
| 2006 | 10 | 5 |
| 2007 | 2 | 1 |
| 2008 | 1 | 3 |
| 2009 | 1 | 3 |
| 2010 | 2 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 5 |
| 2013 | 0 | 2 |
| 2014 | 6 | 3 |
| 2015 | 5 | 7 |
| 2016 | 4 | 6 |
| 2017 | 6 | 10 |
| 2018 | 3 | 3 |
| 2019 | 4 | 4 |
| 2020 | 8 | 2 |
| 2021 | 3 | 6 |
| 2022 | 3 | 3 |
| 2023 | 0 | 3 |
| 2024 | 6 | 6 |
| 2025 | 0 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cartridge for a liquid-cooled plasma arc torch10 Mar 2026US 12,575,016 B2Hypertherm, Inc.
- Wear part for an arc torch and plasma torch, arc torch and plasma torch comprising same, method for plasma cutting and method for producing an electrode for an arc torch and plasma torch13 Jan 2026US 12,526,909 B2Kjellberg-Stiftung
- Plasma torch and center pipe for plasma torch12 Nov 2024US 12,144,098 B2Komatsu Industries Corporation
- Electrodes for gas- and liquid-cooled plasma torches18 Jun 2024US 12,011,789 B2Kjellberg-Stiftung
- Liquid cooled plasma arc torch28 May 2024US 11,997,779 B2Lincoln Global.Inc.
- Plasma reactor for gas reforming, gas reforming apparatus using the same, and method using the plasma reactor9 Jul 2026US 2026/0197928 A1Samsung Electronics Co., Ltd.
- Cathode seated liquid coolant tube for a plasma arc cutting system24 Oct 2024US 2024/0351129 A1Hypertherm, Inc.
- Plasma torch and method of operation26 Sep 2024US 2024/0324091 A1HiiROC-X Developments Limited
- Electrodes for a plasma arc processing system11 Jul 2024US 2024/0237184 A9Hypertherm, Inc.
- Electrode Made by Surface Increase of Cooling Surfaces Connecting Emitter Cutter Tip (Insert) for Plasma Cutting Torches with Copper Electrode Body13 Jun 2024US 2024/0196509 A1
Most cited
By later US patents
- Plasma jet torch having gas vortex in its nozzle for arc constriction132US 4,570,048 APlasma Materials, Inc. · 1986
- Plasma jet torch having converging anode and gas vortex in its nozzle for arc constriction110US 4,656,330 APlasma Materials, Inc. · 1987
- Plasma arc torch and nozzle assembly104US 4,311,897 AUnion Carbide Corporation · 1982
- Electrode for plasma arc torch and method of fabricating same90US 5,023,425 AESAB Welding Products, Inc. · 1991
- Plasma gun with adjustable cathode88US 4,780,591 AThe Perkin-Elmer Corporation · 1988