B23K 11/084
Of helicoidal seams
Official title: {of helicoidal seams}
B23K11/084 (Of helicoidal seams) appears on 5 US grants and 4 published applications in this corpus.
Search patents in B23K- Granted patents
- 5
- Published applications
- 4
- Assignees
- 5
- Inventors
- 21
- Latest grant
- 24 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Double-wall spiral welded pipe and manufacturing method thereof24 Oct 2023US 11,796,092 B2Nanjing Lianzhong Engineering Technology Co., Ltd
- Method for manufacturing spiral-welded steel pipe24 Feb 1987US 4,645,893 ANippon Steel Corporation
- Helical seamed structural vessel and method of forming same9 Apr 1985US 4,509,447 AUniversal Spiralweld Enterprises, Inc.
- Helical seam structural vessel, method and apparatus of forming same4 Dec 1984US 4,485,756 AUniversal Spiralweld Enterprises, Inc.
- Helical seam structural vessel, method and apparatus of forming same7 Feb 1984US 4,429,654 A
- Double-wall spiral welded pipe and manufacturing method thereof24 Nov 2022US 2022/0373109 A1Nanjing Lianzhong Engineering Technology Co., Ltd
- Apparatus and method for automation of weld seams machining6 Aug 2020US 2020/0246898 A1Siemens Gamesa Renewable Energy Innovation & Technology S.L.
- Technique for applying protective covering to pipes and tubes8 Dec 2011US 2011/0297270 A1ALSTOM Technology Ltd
- Metal foil tube and method and apparatus for production thereof13 Jul 2006US 2006/0150388 A1
Most cited
By later US patents
- Helical seamed structural vessel and method of forming same13US 4,509,447 AUniversal Spiralweld Enterprises, Inc. · 1985
- Helical seam structural vessel, method and apparatus of forming same9US 4,429,654 A1984
- Method for manufacturing spiral-welded steel pipe5US 4,645,893 ANippon Steel Corporation · 1987
- Helical seam structural vessel, method and apparatus of forming same1US 4,485,756 AUniversal Spiralweld Enterprises, Inc. · 1984