F23D 14/40
For welding
Official title: for welding (F23D14/44 takes precedence)
F23D14/40 (For welding) appears on 22 US grants and 27 published applications in this corpus.
Search patents in F23D- Granted patents
- 22
- Published applications
- 27
- Assignees
- 18
- Inventors
- 52
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 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 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 3 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 2 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 4 |
| 2022 | 2 | 1 |
| 2023 | 0 | 0 |
| 2024 | 3 | 2 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Burning apparatus for railway repair15 Jul 2025US 12,358,072 B2Goldschmidt Holding GmbH
- Rotating electrical connection with locking axial and radial positions for use in welding and cutting devices11 Mar 2025US 12,247,734 B2
- Hand torch, base, and regulator system23 Jul 2024US 12,044,403 B2Worthington Cylinders Corporation
- Igniter30 Apr 2024US 11,971,168 B2Vaughan IP Pty Ltd
- Oxyhydrogen torch system and method of use16 Apr 2024US 11,959,634 B1
- Method for the autogenous processing of metals29 Jan 2026US 2026/0029124 A1Messer Cutting Systems GmbH
- An igniter22 Feb 2024US 2024/0060642 A2Vaughan IP Pty Ltd
- Burning apparatus for railway repair4 Jan 2024US 2024/0001482 A1Goldschmidt Holding GmbH
- Handheld Welding Torch Apparatus27 Jan 2022US 2022/0026060 A1
- Hand torch, base, and regulator system9 Sep 2021US 2021/0278079 A1Worthington Cylinders Corporation
Most cited
By later US patents
- Blowpipe type of burner18US 4,416,613 A1983
- Front consumables for pulse GMAW torches18US 8,357,877 B2Illinois Tool Works Inc. · 2013
- Electric ignition type handy gas torch11US 5,490,496 A1996
- Safety shut-off device for gas welding apparatus8US 5,667,193 A1997
- Oxy-fuel torch with a single control for the valves7US 6,451,245 B2L 'Air Liquide-Societe 'Anonyme a 'Directoire et Conseil de Surveillance pour l 'Etude et L'Exploitation des Procedes Georges Claude · 2002