B23K 25/00
Slag welding, i.e. using a heated layer or mass of powder, slag
Official title: Slag welding, i.e. using a heated layer or mass of powder, slag or the like in contact with the material to be joined
B23K25/00 (Slag welding, i.e. using a heated layer or mass of powder, slag) appears on 86 US grants and 62 published applications in this corpus.
Search patents in B23K- Granted patents
- 86
- Published applications
- 62
- Assignees
- 50
- Inventors
- 205
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 5 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 1 | 2 |
| 2013 | 0 | 2 |
| 2014 | 2 | 4 |
| 2015 | 3 | 11 |
| 2016 | 7 | 3 |
| 2017 | 5 | 8 |
| 2018 | 3 | 5 |
| 2019 | 3 | 1 |
| 2020 | 3 | 2 |
| 2021 | 2 | 2 |
| 2022 | 1 | 0 |
| 2023 | 3 | 5 |
| 2024 | 2 | 2 |
| 2025 | 3 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Flux for electroslag welding and electroslag welding method24 Feb 2026US 12,558,745 B2Kobe Steel, Ltd.
- Dual twin-saw wire cladding15 Jul 2025US 12,358,066 B2Esab AB
- Welding flux composition and corresponding method for welding metals27 May 2025US 12,311,475 B2Verdicio Solutions A.I.E.
- Rail welding method and device20 May 2025US 12,304,011 B2Dezhou University
- Electroslag strip cladding13 Aug 2024US 12,060,683 B2Esab AB
- Hybrid wire and slag-based additive manufacturing29 Jan 2026US 2026/0027622 A1
- Submerged Arc Welding Method and Submerged Arc Welding Machine25 Jul 2024US 2024/0246165 A1DAIHEN Corporation
- Rail welding method and device25 Jan 2024US 2024/0024977 A1Dezhou University
- Welding flux composition and corresponding method for welding metals21 Dec 2023US 2023/0405734 A1Verdicio Solutions A.I.E.
- Welded product and method of producing welded product28 Sep 2023US 2023/0302570 A1Honda Motor Co., Ltd.
Most cited
By later US patents
- Method of automatically welding rails27US 5,175,405 ANippon Steel Corporation · 1992
- Process for automatic fusion welding of rails18US 4,841,116 ANippon Steel Corporation · 1989
- Laser additive manufacture of three-dimensional components containing multiple materials formed as integrated systems18US 9,776,282 B2Siemens Energy, Inc. · 2017
- Horizontal electro-slag welding process for surfacing17US 4,309,587 AKawasaki Steel Corporation · 1982
- Method for welding railroad rails and means therefor17US 4,429,207 ASouthern Pacific Transportation Company · 1984