B23K 31/027
Making tubes by soldering or welding
Official title: {Making tubes by soldering or welding}
B23K31/027 (Making tubes by soldering or welding) appears on 235 US grants and 268 published applications in this corpus.
Search patents in B23K- Granted patents
- 235
- Published applications
- 268
- Assignees
- 204
- Inventors
- 652
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 6 | 0 |
| 1987 | 0 | 0 |
| 1988 | 6 | 0 |
| 1989 | 8 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 5 |
| 2009 | 0 | 3 |
| 2010 | 3 | 7 |
| 2011 | 3 | 13 |
| 2012 | 7 | 9 |
| 2013 | 8 | 9 |
| 2014 | 6 | 17 |
| 2015 | 14 | 27 |
| 2016 | 14 | 26 |
| 2017 | 18 | 19 |
| 2018 | 15 | 14 |
| 2019 | 18 | 17 |
| 2020 | 16 | 17 |
| 2021 | 12 | 22 |
| 2022 | 9 | 15 |
| 2023 | 15 | 12 |
| 2024 | 16 | 14 |
| 2025 | 14 | 13 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Nickel-based alloy for manufacturing pipeline tubes16 Jun 2026US 12,655,501 B2Aperam
- Method for producing pipes having topographic inner structures2 Jun 2026US 12,644,654 B2Karlsruher Institut Fuer Technologie
- Integrated welding and thermal processing joining method for creep strength enhanced ferritic steels10 Mar 2026US 12,571,064 B2Kva Technologies
- Manufacture of roll formed tubes20 Jan 2026US 12,528,108 B2Hydro Extruded Solutions AS
- Multi-tubular beam for a vehicle23 Dec 2025US 12,502,703 B2Shape Corp.
- Steel pipe out-of-roundness prediction method, steel pipe out-of-roundness control method, steel pipe manufacturing method, steel pipe out-of-roundness prediction model generation method, and steel pipe out-of-roundness prediction device8 Oct 2026US 2026/0307127 A1Jfe Steel Corporation
- Seam position detection method, manufacturing method of welded steel pipe, quality control method of welded steel pipe, seam position detection apparatus, and manufacturing equipment of welded steel pipe8 Oct 2026US 2026/0307128 A1Jfe Steel Corporation
- Method for producing and/or processing a continuous belt comprising a belt body made of metal2 Jul 2026US 2026/0183857 A1Berndorf Band GmbH
- Sulfur-resistant and corrosion-resistant low-carbon alloy-based coiled tubing and preparation method thereof28 May 2026US 2026/0145278 A1Shinda (Tangshan) Creative Oil & Gas Equipment Co., Ltd.
- Pipe assembly, machining path generation method, and laser beam machining system23 Apr 2026US 2026/0108988 A1Yamazaki Mazak Corporation
Most cited
By later US patents
- Heat sink welding and purging apparatus42US 4,101,067 ASloan Purge Products Co., Inc. · 1978
- Continuous length of coilable tubing32US 5,191,911 AQuality Tubing, Inc. · 1993
- Position adjustable grapple attachment31US 8,328,071 B2Lavalley Industries, LLC · 2012
- Method of producing multiple-wall, composite tubular structures30US 4,449,281 AKawasaki Jukogyo Kabushiki Kaisha · 1984
- Method and apparatus for producing continuous lengths of coilable tubing26US 4,863,091 AQuality Tubing, Inc. · 1989