B23K 26/28
Of curved planar seams
Official title: of curved planar seams
B23K26/28 (Of curved planar seams) appears on 537 US grants and 621 published applications in this corpus.
Search patents in B23K- Granted patents
- 537
- Published applications
- 621
- Assignees
- 445
- Inventors
- 1,639
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 7 | 0 |
| 1992 | 9 | 0 |
| 1993 | 14 | 0 |
| 1994 | 5 | 0 |
| 1995 | 12 | 0 |
| 1996 | 8 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 7 | 6 |
| 2002 | 9 | 11 |
| 2003 | 10 | 16 |
| 2004 | 3 | 17 |
| 2005 | 11 | 15 |
| 2006 | 16 | 20 |
| 2007 | 6 | 12 |
| 2008 | 5 | 17 |
| 2009 | 9 | 25 |
| 2010 | 6 | 22 |
| 2011 | 13 | 16 |
| 2012 | 9 | 25 |
| 2013 | 24 | 41 |
| 2014 | 16 | 27 |
| 2015 | 16 | 21 |
| 2016 | 22 | 40 |
| 2017 | 30 | 37 |
| 2018 | 23 | 32 |
| 2019 | 29 | 41 |
| 2020 | 32 | 28 |
| 2021 | 29 | 31 |
| 2022 | 28 | 30 |
| 2023 | 20 | 31 |
| 2024 | 17 | 24 |
| 2025 | 17 | 21 |
| 2026 | 14 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multi-part piston construction for an opposed-piston engine29 Sep 2026US 12,747,713 B2General Atomics Aeronautical Systems, Inc.
- Scanning radial laser processing with bi-conical reflection22 Sep 2026US 12,741,338 B2Rofin-Sinar Technologies Inc.
- Laser welding mechanism1 Sep 2026US 12,722,229 B2GENII IDEAS Co., Ltd.
- Automatic welding apparatus using inside steel tube9 Jun 2026US 12,649,202 B2China Railway Urban Construction Group Corporation Limited
- Laser welding method19 May 2026US 12,629,775 B2Kabushiki Kaisha Toshiba
- Mounting pin holders using a laser welding process8 Oct 2026US 2026/0307182 A1Shenzhen STS Microelectronics Co., Ltd.
- Method and plant for making a batch freezing unit and batch freezing unit obtained by such method17 Sep 2026US 2026/0273663 A1Ali Group S.R.L.—Carpigiani
- Laser welding method30 Jul 2026US 2026/0216824 A1Panasonic Intellectual Property Management Co., Ltd.
- Laser welding method23 Jul 2026US 2026/0208297 A1Panasonic Intellectual Property Management Co., Ltd.
- Method of joining a cast iron component with a steel component and assembly produced therefrom16 Jul 2026US 2026/0200021 A1GM Global Technology Operations LLC
Most cited
By later US patents
- Joining a workpiece in a concealed joining seam117US 9,700,966 B2Fft Produktionssysteme GmbH & Co. KG · 2017
- Blind via laser drilling system115US 6,211,485 B12001
- Blind via laser drilling system91US 6,631,558 B2Laservia Corporation · 2003
- Method of repairing a discontinuity on a tube by welding72US 5,789,720 AWestinghouse Electric Corp. · 1998
- Turbine exhaust case and method of making71US 7,100,358 B2Pratt & Whitney Canada Corp. · 2006