B23K 11/0873
Of the longitudinal seam of tubes
Official title: {of the longitudinal seam of tubes}
B23K11/0873 (Of the longitudinal seam of tubes) appears on 78 US grants and 83 published applications in this corpus.
Search patents in B23K- Granted patents
- 78
- Published applications
- 83
- Assignees
- 39
- Inventors
- 184
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 4 |
| 2009 | 0 | 1 |
| 2010 | 1 | 4 |
| 2011 | 1 | 3 |
| 2012 | 2 | 3 |
| 2013 | 2 | 1 |
| 2014 | 0 | 0 |
| 2015 | 5 | 11 |
| 2016 | 1 | 6 |
| 2017 | 4 | 4 |
| 2018 | 5 | 7 |
| 2019 | 6 | 6 |
| 2020 | 6 | 15 |
| 2021 | 5 | 5 |
| 2022 | 8 | 3 |
| 2023 | 5 | 2 |
| 2024 | 2 | 2 |
| 2025 | 6 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electric resistance welded steel pipe and method for manufacturing the same20 Jan 2026US 12,529,435 B2Jfe Steel Corporation
- Method of preparing a pipe-section16 Dec 2025US 12,498,057 B2Technip France
- Welding monitoring apparatus and welding monitoring method4 Nov 2025US 12,459,023 B2Nippon Steel Corporation
- Electric resistance-welded steel tube for hollow stabilizer, hollow stabilizer, and manufacturing methods of same22 Jul 2025US 12,365,958 B2NHK Spring Co., Ltd.
- Method for monitoring welding of electric resistance welded steel pipe, method for manufacturing electric resistance welded steel pipe, device for monitoring welding of electric resistance welded steel pipe, and device for manufacturing electric resistance welded steel pipe8 Jul 2025US 12,350,753 B2Nippon Steel Corporation
- Production method of electric resistance welded steel pipe and electric resistance welded steel pipe27 Aug 2026US 2026/0249378 A1Nippon Steel Corporation
- Electric resistance welded steel pipe or tube and production method therefor29 Jan 2026US 2026/0027641 A1Jfe Steel Corporation
- Hot-rolled steel sheet and method of producing same, and electric resistance welded steel pipe or tube and method of producing same7 Aug 2025US 2025/0250660 A1Jfe Steel Corporation
- Electric resistance welded pipe or tube and method of producing same5 Jun 2025US 2025/0178116 A1Jfe Steel Corporation
- Welding monitoring apparatus and welding monitoring method14 Mar 2024US 2024/0082900 A1Nippon Steel Corporation
Most cited
By later US patents
- Apparatus for continuous manufacture of butt-welded pipe32US 4,357,512 ASumitomo Kinzoku Kogyo Kabushiki Kaisha · 1982
- Z-bar guide apparatus and method of butt welding24US 4,354,090 ASWS Incorporated · 1982
- Method of butt welding sheet metal12US 4,341,943 ASWS Incorporated · 1982
- Z-Bar guide apparatus11US 4,272,004 ASWS Incorporated · 1981
- Internally and externally enhanced wielded tube8US 5,730,189 AOlin Corporation · 1998