B23K 9/028
For curved planar seams
Official title: for curved planar seams
B23K9/028 (For curved planar seams) appears on 656 US grants and 515 published applications in this corpus.
Search patents in B23K- Granted patents
- 656
- Published applications
- 515
- Assignees
- 393
- Inventors
- 1,483
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 11 | 0 |
| 1978 | 13 | 0 |
| 1979 | 17 | 0 |
| 1980 | 13 | 0 |
| 1981 | 14 | 0 |
| 1982 | 14 | 0 |
| 1983 | 9 | 0 |
| 1984 | 7 | 0 |
| 1985 | 23 | 0 |
| 1986 | 23 | 0 |
| 1987 | 9 | 0 |
| 1988 | 6 | 0 |
| 1989 | 16 | 0 |
| 1990 | 14 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 13 | 0 |
| 1994 | 8 | 0 |
| 1995 | 10 | 0 |
| 1996 | 9 | 0 |
| 1997 | 8 | 0 |
| 1998 | 9 | 0 |
| 1999 | 7 | 0 |
| 2000 | 12 | 0 |
| 2001 | 11 | 3 |
| 2002 | 12 | 8 |
| 2003 | 7 | 8 |
| 2004 | 5 | 8 |
| 2005 | 5 | 9 |
| 2006 | 6 | 11 |
| 2007 | 8 | 12 |
| 2008 | 3 | 15 |
| 2009 | 3 | 20 |
| 2010 | 8 | 25 |
| 2011 | 6 | 18 |
| 2012 | 8 | 21 |
| 2013 | 16 | 26 |
| 2014 | 15 | 33 |
| 2015 | 15 | 28 |
| 2016 | 24 | 25 |
| 2017 | 22 | 23 |
| 2018 | 12 | 27 |
| 2019 | 28 | 28 |
| 2020 | 30 | 30 |
| 2021 | 17 | 30 |
| 2022 | 24 | 26 |
| 2023 | 22 | 30 |
| 2024 | 22 | 21 |
| 2025 | 30 | 21 |
| 2026 | 13 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Lined pipe and joints thereof4 Aug 2026US 12,698,850 B2
- Nickel-based alloy for manufacturing pipeline tubes16 Jun 2026US 12,655,501 B2Aperam
- Apparatus for pipe purging26 May 2026US 12,636,726 B2Airgas, Inc.
- Pipe connection assembly of heat exchanger5 May 2026US 12,618,621 B2Hanon Systems
- Robotics for welding of columns28 Apr 2026US 12,611,739 B2New York University
- Welding method for bimetal composite pipes for acidic environment10 Sep 2026US 2026/0264158 A1Southwest Petroleum University
- Systems and methods for seam tracking in pipe welding11 Jun 2026US 2026/0158577 A1Novarc Technologies Inc.
- Adaptive welding21 May 2026US 2026/0138201 A1
- Welding process automation21 May 2026US 2026/0138202 A1Tecnar Automation Ltee
- Mobile close proximity orbital welding system having a shielded weld zone7 May 2026US 2026/0124692 A1Valex, Inc.
Most cited
By later US patents
- Short circuit welder150US 6,051,810 ALincoln Global.Inc. · 2000
- Joining a workpiece in a concealed joining seam117US 9,700,966 B2Fft Produktionssysteme GmbH & Co. KG · 2017
- Automatic weld head alignment and guidance system and method85US 6,492,618 B1Tri Tool Inc. · 2002
- Slope-speed sensor for seam welding apparatus75US 4,577,499 ACyclomatic Industries, Inc. · 1986
- Automatic pipe welding system62US 4,145,593 AMerrick Welding International, Inc. · 1979