B23K 37/0531
Internal pipe alignment clamps
B23K37/0531 (Internal pipe alignment clamps) appears on 132 US grants and 94 published applications in this corpus.
Search patents in B23K- Granted patents
- 132
- Published applications
- 94
- Assignees
- 93
- Inventors
- 278
- Latest grant
- 25 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 7 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 1 |
| 2002 | 4 | 2 |
| 2003 | 3 | 2 |
| 2004 | 1 | 3 |
| 2005 | 2 | 2 |
| 2006 | 0 | 3 |
| 2007 | 1 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 6 |
| 2010 | 3 | 3 |
| 2011 | 1 | 2 |
| 2012 | 1 | 2 |
| 2013 | 2 | 2 |
| 2014 | 2 | 11 |
| 2015 | 2 | 4 |
| 2016 | 8 | 4 |
| 2017 | 4 | 7 |
| 2018 | 6 | 10 |
| 2019 | 4 | 9 |
| 2020 | 6 | 7 |
| 2021 | 2 | 6 |
| 2022 | 5 | 0 |
| 2023 | 5 | 2 |
| 2024 | 1 | 2 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Internal clamping and welding device25 Mar 2025US 12,257,653 B2Serimax Holdings
- Light-transmittance device and use method11 Feb 2025US 12,222,200 B2Zhongjian Wuzhou Engineering Equipment Co., Ltd
- Adaptive guide bushing for laser tube cutting systems30 Apr 2024US 11,969,819 B2Vactronix Scientific, LLC
- Device for welding pipe branches and extensions24 Oct 2023US 11,794,266 B2
- Internally welded pipes26 Sep 2023US 11,767,934 B2CRC-Evans Pipeline International, Inc.
- Orbital welding head for welding the joints of tubes of tube plates of heat exchangers with a rotating joint having flexible blades28 Aug 2025US 2025/0269454 A1Maus Italia SPA
- Assembly for Engaging the Interior of a Pipe26 Sep 2024US 2024/0318762 A1Vital Industrial Solutions Inc.
- Light-transmittance device and use method1 Aug 2024US 2024/0255280 A1Zhongjian Wuzhou Engineering Equipment Co., Ltd
- Orbital welding system for welding the joints of tubes of tube plates of heat exchangers30 Nov 2023US 2023/0381879 A1Maus Italia SPA
- Assembly for Engaging the Interior of a Pipe5 Jan 2023US 2023/0003331 A1Vital Industrial Solutions Inc.
Most cited
By later US patents
- Tooling and methods for circumferential friction stir welding45US 6,257,479 B1The Boeing Company · 2001
- Internal line up clamp34US 5,535,938 ACRC-Evans Pipeline International, Inc. · 1996
- Clamping mechanism for line-up of pipes32US 3,979,041 ANippon Kokan Kabushiki Kaisha · 1976
- Apparatus and method for aligning and welding tubular metal components together31US 4,084,739 AWisconsin Centrifugal, Inc. · 1978
- Backing ring assembly for pipes28US 3,960,311 AWelding Controls Limited · 1976