B23K 9/0253
For the longitudinal seam of tubes
Official title: {for the longitudinal seam of tubes}
B23K9/0253 (For the longitudinal seam of tubes) appears on 70 US grants and 61 published applications in this corpus.
Search patents in B23K- Granted patents
- 70
- Published applications
- 61
- Assignees
- 62
- Inventors
- 200
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 2 |
| 2002 | 2 | 2 |
| 2003 | 0 | 0 |
| 2004 | 2 | 2 |
| 2005 | 2 | 4 |
| 2006 | 1 | 0 |
| 2007 | 2 | 3 |
| 2008 | 1 | 1 |
| 2009 | 1 | 7 |
| 2010 | 3 | 1 |
| 2011 | 2 | 2 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 3 | 2 |
| 2015 | 1 | 5 |
| 2016 | 1 | 4 |
| 2017 | 1 | 0 |
| 2018 | 2 | 2 |
| 2019 | 1 | 3 |
| 2020 | 1 | 6 |
| 2021 | 1 | 5 |
| 2022 | 3 | 2 |
| 2023 | 3 | 1 |
| 2024 | 3 | 3 |
| 2025 | 3 | 1 |
| 2026 | 2 | 0 |
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
- Ultra-high-strength hot-rolled steel sheet, steel pipe, member, and manufacturing methods therefor26 May 2026US 12,637,727 B2Posco
- Method of preparing a pipe-section16 Dec 2025US 12,498,057 B2Technip France
- Lateral electro-conduction device and method for multi-wire submerged arc inner/outer welding of straight-seam steel pipe18 Nov 2025US 12,472,577 B2Harbin Welding Institute Limited Company
- Hot-rolled steel sheet and weld joint, and methods for producing same14 Jan 2025US 12,195,817 B2Nippon Steel Corporation
- Nickel-based alloy for manufacturing pipeline tubes4 Sep 2025US 2025/0277289 A1Aperam
- Lateral electro-conduction device and method for multi-wire submerged arc inner/outer welding of straight-seam steel pipe27 Jun 2024US 2024/0207965 A1Harbin Welding Institute Limited Company
- Ultra-high-strength hot-rolled steel sheet, steel pipe, member, and manufacturing methods therefor27 Jun 2024US 2024/0209467 A1Posco
- Position detection device for seam portion and heated portion of welded steel pipe, manufacturing facility for welded steel pipe, position detection method for seam portion and heated portion of welded steel pipe, manufacturing method for welded steel pipe, and quality control method for welded steel pipe6 Jun 2024US 2024/0181513 A1Jfe Steel Corporation
- Welding system and method for use21 Dec 2023US 2023/0405737 A1Weldingdroid ApS
Most cited
By later US patents
- Continuous manufacturing method for a metal welded tube and a manufacturing apparatus therefor66US 5,140,123 AKusakabe Electric & Machinery Co., Ltd. · 1992
- Method and apparatus for tracking seam welds on pipes and the like52US 4,577,796 AKaiser Steel Corporation · 1986
- Heavy duty pipe spreader44US 3,937,054 AArmco Steel Corporation · 1976
- Martensitic stainless steel welded pipe22US 6,379,821 B2Sumitomo Metal Industries, Ltd. · 2002
- Method of manufacturing cold worked, high strength seamless CRA PIPE18US 6,880,220 B2John Gandy Corporation · 2005