B23K 37/0276
For working on or in tubes
Official title: {for working on or in tubes (B23K37/0211 takes precedence)}
B23K37/0276 (For working on or in tubes) appears on 148 US grants and 188 published applications in this corpus.
Search patents in B23K- Granted patents
- 148
- Published applications
- 188
- Assignees
- 126
- Inventors
- 467
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 1 |
| 2002 | 4 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 3 |
| 2007 | 2 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 4 |
| 2010 | 1 | 5 |
| 2011 | 0 | 6 |
| 2012 | 3 | 7 |
| 2013 | 5 | 17 |
| 2014 | 6 | 10 |
| 2015 | 12 | 14 |
| 2016 | 10 | 7 |
| 2017 | 9 | 10 |
| 2018 | 5 | 16 |
| 2019 | 10 | 11 |
| 2020 | 15 | 12 |
| 2021 | 4 | 16 |
| 2022 | 9 | 12 |
| 2023 | 10 | 13 |
| 2024 | 9 | 7 |
| 2025 | 10 | 8 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Automatic welding apparatus using inside steel tube9 Jun 2026US 12,649,202 B2China Railway Urban Construction Group Corporation Limited
- Orbital welding device with improved residual oxygen measurement31 Mar 2026US 12,589,453 B2Illinois Tool Works Inc.
- Orbital welding device with improved security and reduced failure probability17 Feb 2026US 12,551,960 B2Illinois Tool Works Inc.
- Manual tube welding device23 Dec 2025US 12,502,736 B2Caterpillar Inc.
- Internal welding of pipes and profiles23 Dec 2025US 12,502,737 B2SMS group GmbH
- A device and method for manipulating an inner surface of an elongated object27 Aug 2026US 2026/0249390 A1W2M Industries Oy
- Mobile close proximity orbital welding system having a shielded weld zone7 May 2026US 2026/0124692 A1Valex, Inc.
- Orbital Welding Device with Welding Head Being Adjustable Between an Open and a Closed State12 Mar 2026US 2026/0070142 A1Viega Technology GmbH & Co. KG
- Orbital welding head16 Oct 2025US 2025/0319539 A1Illinois Tool Works Inc.
- Orbital welding device with simplified handling28 Aug 2025US 2025/0269453 A1Illinois Tool Works Inc.
Most cited
By later US patents
- Automatic weld head alignment and guidance system and method85US 6,492,618 B1Tri Tool Inc. · 2002
- Robot system and machining method with robot system31US 7,092,791 B2Fanuc Corporation · 2006
- Clamp-welded pipe joint27US 4,131,302 ABechtel International Corporation · 1978
- Reflecting mirror for a laser beam and laser beam welding apparatus, including the same laser beam reflecting mirror27US 5,097,110 AMitsubishi Jukogyo Kabushiki Kaisha · 1992
- Laser controlled internal welding machine for a pipeline22US 10,040,141 B2CRC-Evans Pipeline International, Inc. · 2018