B23K 9/20
Stud welding
B23K9/20 (Stud welding) appears on 347 US grants and 283 published applications in this corpus.
Search patents in B23K- Granted patents
- 347
- Published applications
- 283
- Assignees
- 130
- Inventors
- 561
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 2 | 0 |
| 1983 | 7 | 0 |
| 1984 | 12 | 0 |
| 1985 | 5 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 8 | 0 |
| 1992 | 7 | 0 |
| 1993 | 2 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 8 | 0 |
| 1997 | 7 | 0 |
| 1998 | 6 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 6 | 1 |
| 2002 | 6 | 2 |
| 2003 | 3 | 13 |
| 2004 | 9 | 20 |
| 2005 | 5 | 11 |
| 2006 | 14 | 15 |
| 2007 | 12 | 13 |
| 2008 | 6 | 10 |
| 2009 | 6 | 8 |
| 2010 | 1 | 11 |
| 2011 | 4 | 8 |
| 2012 | 6 | 5 |
| 2013 | 11 | 14 |
| 2014 | 6 | 13 |
| 2015 | 7 | 9 |
| 2016 | 6 | 6 |
| 2017 | 7 | 13 |
| 2018 | 3 | 9 |
| 2019 | 13 | 14 |
| 2020 | 5 | 22 |
| 2021 | 8 | 11 |
| 2022 | 9 | 21 |
| 2023 | 12 | 8 |
| 2024 | 11 | 10 |
| 2025 | 10 | 10 |
| 2026 | 6 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Welding gun and method for monitoring a welding process11 Aug 2026US 12,703,038 B2Newfrey LLC
- Stud welding ferrule and apparatus28 Jul 2026US 12,691,522 B2Structural Services, Inc.
- System, method and apparatus for stud welding14 Jul 2026US 12,678,883 B1Valmont Industries, Inc.
- Shear stud feeder for a stud welding gun19 May 2026US 12,629,765 B2Structural Services, Inc.
- Fastening method14 Apr 2026US 12,599,984 B2Hilti Aktiengesellschaft
- Shear stud feeder for a stud welding gun3 Sep 2026US 2026/0257294 A1Structural Services, Inc.
- Adapter Device for a Joining Arrangement, Joining Arrangement, and Joining Method6 Aug 2026US 2026/0225265 A1Newfrey LLC
- Steel alloy, article of manufacture and method23 Jul 2026US 2026/0209915 A1Hilti Aktiengesellschaft
- Device for joining and joining method with a detection device for aligning a joining head16 Jul 2026US 2026/0199999 A1Newfrey LLC
- Stud welding arrangement, a process of stud welding, and a construction from stud welding16 Apr 2026US 2026/0102835 A1Advanced Construction Robotics, Inc.
Most cited
By later US patents
- Apparatus and method for monitoring and evaluating weld quality99US 5,676,867 AEmhart Inc. · 1997
- Electrical stud welding device for welding studs of different diameters without pre-testing adjusting welds48US 4,415,792 AOBO Bettermann OHG · 1983
- Electric stud-welding device46US 5,039,835 ATRW Nelson Bolzenschweiss-Technik GmbH & Co. KG. · 1991
- Controller for a stud welding machine37US 5,317,123 AEmhart Inc. · 1994
- Rotatable work platform with clamps for wall and truss fabrication33US 5,617,622 A1997