H05H 1/3442
Cathodes with inserted tip
Official title: {Cathodes with inserted tip}
H05H1/3442 (Cathodes with inserted tip) appears on 194 US grants and 96 published applications in this corpus.
Search patents in H05H- Granted patents
- 194
- Published applications
- 96
- Assignees
- 57
- Inventors
- 260
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 6 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 10 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 0 | 0 |
| 1997 | 10 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 2 |
| 2002 | 9 | 4 |
| 2003 | 5 | 3 |
| 2004 | 1 | 9 |
| 2005 | 6 | 3 |
| 2006 | 9 | 4 |
| 2007 | 1 | 3 |
| 2008 | 1 | 4 |
| 2009 | 0 | 3 |
| 2010 | 3 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 5 |
| 2013 | 2 | 5 |
| 2014 | 6 | 6 |
| 2015 | 8 | 10 |
| 2016 | 6 | 3 |
| 2017 | 6 | 4 |
| 2018 | 2 | 2 |
| 2019 | 4 | 3 |
| 2020 | 5 | 6 |
| 2021 | 1 | 3 |
| 2022 | 3 | 2 |
| 2023 | 3 | 2 |
| 2024 | 4 | 4 |
| 2025 | 0 | 1 |
| 2026 | 2 | 3 |
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
- 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
- Electrodes for gas- and liquid-cooled plasma torches18 Jun 2024US 12,011,789 B2Kjellberg-Stiftung
- Annular hollow cathode19 Mar 2024US 11,937,361 B1The Government of the United States of America, as represented by the Secretary of the Navy
- Electrodes for gas- and liquid-cooled plasma torches9 Jan 2024US 11,865,650 B2Kjellberg-Stiftung
- Ceramic sintered body and plasma-generating electrode25 Jun 2026US 2026/0176208 A1Niterra Co., Ltd.
- Component such as a wearing part for an arc torch, in particular a plasma burner or plasma cutting torch, arc torch comprising same, and method of plasma cutting2 Apr 2026US 2026/0091442 A1Kjellberg-Stiftung
- Electrode for a contact-start plasma arc torch5 Mar 2026US 2026/0061511 A1Hypertherm, Inc.
- Torch with movable emissive insert28 Aug 2025US 2025/0275051 A1The ESAB Group, Inc.
- Electrodes for a plasma arc processing system11 Jul 2024US 2024/0237184 A9Hypertherm, Inc.
Most cited
By later US patents
- Production of fluorocarbon compounds120US 5,611,896 AAtomic Energy Corporation of S. Africa Limited · 1997
- 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
- Plasma arc cutting process and apparatus using an oxygen-rich gas shield104US 5,695,662 AHypertherm, Inc. · 1997
- Electrode for plasma arc torch and method of fabricating same90US 5,023,425 AESAB Welding Products, Inc. · 1991