B23K 23/00
Alumino-thermic welding
B23K23/00 (Alumino-thermic welding) appears on 145 US grants and 93 published applications in this corpus.
Search patents in B23K- Granted patents
- 145
- Published applications
- 93
- Assignees
- 63
- Inventors
- 251
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 7 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 6 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 6 |
| 2004 | 7 | 4 |
| 2005 | 0 | 4 |
| 2006 | 1 | 1 |
| 2007 | 3 | 5 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 5 | 5 |
| 2011 | 5 | 5 |
| 2012 | 1 | 6 |
| 2013 | 3 | 4 |
| 2014 | 4 | 3 |
| 2015 | 3 | 6 |
| 2016 | 2 | 1 |
| 2017 | 3 | 4 |
| 2018 | 1 | 6 |
| 2019 | 5 | 8 |
| 2020 | 8 | 5 |
| 2021 | 5 | 4 |
| 2022 | 4 | 2 |
| 2023 | 4 | 2 |
| 2024 | 3 | 5 |
| 2025 | 2 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method to produce thermite welds by applying first and second vibrations8 Sep 2026US 12,728,479 B2University of Houston System
- Smart controller for exothermic welding and related systems and methods17 Mar 2026US 12,576,456 B2TE Connectivity Solutions GmbH
- Arc ignition system for exothermic welding apparatus25 Nov 2025US 12,479,043 B2Hubbell Incorporated
- Burning apparatus for railway repair15 Jul 2025US 12,358,072 B2Goldschmidt Holding GmbH
- Method for sealing a casting mould for aluminothermic rail weldings29 Oct 2024US 12,128,496 B2Goldschmidt Holding GmbH
- Exothermic welding systems and methods13 Aug 2026US 2026/0233428 A1
- Container for exothermic welding material8 May 2025US 2025/0145360 A1ERICO International Corporation
- Exothermic Welding System1 May 2025US 2025/0136837 A1ERICO International Corporation
- Exothermic Welding Device26 Dec 2024US 2024/0424599 A1ERICO International Corporation
- Exothermic Welding System22 Aug 2024US 2024/0278350 A1
Most cited
By later US patents
- Methods of joining metal components and resulting articles particularly automotive torque converter assemblies32US 5,902,498 AQQC, Inc. · 1999
- Welding apparatus and method30US 5,145,106 AERICO International Corporation · 1992
- Exothermic welding jig, molds therefor and method30US 5,660,317 AERICO International Corporation · 1997
- Welding handle clamp29US 6,382,496 B1Harger, Inc. · 2002
- Exothermic welding apparatus and method28US 4,879,452 AERICO International Corporation · 1989