B23K 13/025
For tubes
Official title: {for tubes}
B23K13/025 (For tubes) appears on 99 US grants and 85 published applications in this corpus.
Search patents in B23K- Granted patents
- 99
- Published applications
- 85
- Assignees
- 67
- Inventors
- 249
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 5 |
| 2003 | 2 | 1 |
| 2004 | 2 | 3 |
| 2005 | 2 | 3 |
| 2006 | 3 | 4 |
| 2007 | 1 | 1 |
| 2008 | 2 | 4 |
| 2009 | 1 | 4 |
| 2010 | 1 | 4 |
| 2011 | 2 | 1 |
| 2012 | 2 | 3 |
| 2013 | 3 | 3 |
| 2014 | 2 | 0 |
| 2015 | 3 | 8 |
| 2016 | 2 | 2 |
| 2017 | 0 | 4 |
| 2018 | 4 | 7 |
| 2019 | 4 | 4 |
| 2020 | 6 | 11 |
| 2021 | 1 | 5 |
| 2022 | 4 | 0 |
| 2023 | 4 | 1 |
| 2024 | 0 | 2 |
| 2025 | 1 | 1 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Parallel robotics system and method of induction kinetic hybrid welding processes29 Sep 2026US 12,746,626 B2Spinduction Weld, Inc.
- Methods of using induction heating and moisture barriers to perform in-service pipeline maintenance16 Jun 2026US 12,654,251 B1Weldfit LLC
- Manufacture of roll formed tubes20 Jan 2026US 12,528,108 B2Hydro Extruded Solutions AS
- Method of preparing a pipe-section16 Dec 2025US 12,498,057 B2Technip France
- High frequency power supply system with closely regulated output for heating a workpiece10 Oct 2023US 11,784,576 B2Thermatool Corp.
- Production method of electric resistance welded steel pipe and electric resistance welded steel pipe27 Aug 2026US 2026/0249378 A1Nippon Steel Corporation
- Impedance sheet, mandrel of electric-resistance welded pipe manufacturing device, and method for manufacturing electric-resistance welded pipe27 Aug 2026US 2026/0249380 A1Nippon Steel Corporation
- Mandrel equipped with impedance device, electric-resistance welded pipe manufacturing device, and method for manufacturing electric-resistance welded pipe6 Aug 2026US 2026/0225176 A1Nippon Steel Corporation
- 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.
- Electric resistance welded pipe or tube and method of producing same5 Jun 2025US 2025/0178116 A1Jfe Steel Corporation
Most cited
By later US patents
- Method and device for joining oilfield tubulars127US 6,078,031 AShell Research Limited · 2000
- Power device for fusing plastic pipe joints123US 5,788,789 AGeorge Fischer Sloane, Inc. · 1998
- Seam-welded metal pipe and method of making the same without seam anneal115US 7,032,809 B1Steel Ventures, L.L.C. · 2006
- Welding management apparatus94US 5,360,156 AMeidensha Corporation · 1994
- Method for joining vehicle frame components40US 5,966,813 ADana Corporation · 1999