B23K 20/085
For tubes
Official title: {for tubes, e.g. plugging}
B23K20/085 (For tubes) appears on 77 US grants and 21 published applications in this corpus.
Search patents in B23K- Granted patents
- 77
- Published applications
- 21
- Assignees
- 54
- Inventors
- 115
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 7 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 6 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 2 | 2 |
| 2011 | 1 | 2 |
| 2012 | 1 | 1 |
| 2013 | 2 | 2 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 1 |
| 2017 | 2 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 2 |
| 2022 | 0 | 2 |
| 2023 | 1 | 0 |
| 2024 | 2 | 2 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for connecting ferritic with austenitic steel pipes24 Mar 2026US 12,583,052 B2Linde Aktiengesellschaft
- Method and apparatus for additive friction stir manufactured transition joint2 Dec 2025US 12,486,872 B2DMC Global Inc.
- Arrangement for making a diffusion solder connection between an electrically conductive contact element and a workpiece12 Nov 2024US 12,138,707 B2TE Connectivity Germany GmbH
- Method and apparatus for additive friction stir manufactured transition joint6 Aug 2024US 12,055,186 B2DMC Global Inc.
- Systems and methods for production of metallurgically bonded clad billet and products thereof, and metallurgically bonded clad billet28 Nov 2023US 11,826,805 B2
- Method and apparatus for additive friction stir manufactured transition joint17 Oct 2024US 2024/0344567 A1DMC Global Inc.
- Method for connecting ferritic with austenitic steel pipes26 Sep 2024US 2024/0316684 A1Linde Aktiengesellschaft
- Arrangement for Making a Diffusion Solder Connection Between an Electrically Conductive Contact Element and a Workpiece22 Sep 2022US 2022/0297226 A1TE Connectivity Germany GmbH
- Method and apparatus for additive friction stir manufactured transition joint12 May 2022US 2022/0143740 A1DMC Global Inc.
- Pyrolysis retort methods and apparatus30 Dec 2021US 2021/0404656 A1
Most cited
By later US patents
- Stainless steel liner in oil well pipe144US 4,026,583 AHydril Company · 1977
- Explosion-welded pipe joint113US 4,981,250 AExploweld AB · 1991
- Method of making a blast joint24US 4,028,796 A1977
- Pipe joint for connecting different kinds of metallic pipes21US 4,010,965 AAsahi Kasei Kogyo Kabushiki Kaisha · 1977
- Compensated blast joint for oil well production tubing21US 4,211,440 A1980