B21D 39/06
Application of procedures in order to connect objects or parts: of tubes
Official title: of tubes in openings, e.g. rolling-in
B21D39/06 (Application of procedures in order to connect objects or parts: of tubes) appears on 330 US grants and 202 published applications in this corpus.
Search patents in B21D- Granted patents
- 330
- Published applications
- 202
- Assignees
- 206
- Inventors
- 612
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 6 | 0 |
| 1980 | 12 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 11 | 0 |
| 1986 | 9 | 0 |
| 1987 | 12 | 0 |
| 1988 | 14 | 0 |
| 1989 | 7 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 8 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 2 | 1 |
| 2002 | 7 | 5 |
| 2003 | 4 | 4 |
| 2004 | 3 | 7 |
| 2005 | 3 | 5 |
| 2006 | 4 | 6 |
| 2007 | 2 | 4 |
| 2008 | 2 | 6 |
| 2009 | 2 | 9 |
| 2010 | 3 | 13 |
| 2011 | 6 | 5 |
| 2012 | 6 | 2 |
| 2013 | 5 | 11 |
| 2014 | 7 | 6 |
| 2015 | 7 | 9 |
| 2016 | 9 | 7 |
| 2017 | 5 | 9 |
| 2018 | 8 | 14 |
| 2019 | 10 | 23 |
| 2020 | 10 | 15 |
| 2021 | 26 | 13 |
| 2022 | 12 | 7 |
| 2023 | 8 | 7 |
| 2024 | 7 | 5 |
| 2025 | 5 | 8 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for fastening piercing nut to stacked body of plate-shaped workpieces11 Aug 2026US 12,704,146 B2Aoyama Seisakusho Co., Ltd.
- Joining method, and device for such13 Jan 2026US 12,521,782 B2Mahle International GmbH
- Wheel constructed with hybrid spoke assemblies4 Nov 2025US 12,459,030 B2
- Manufacturing method of rotor20 May 2025US 12,308,706 B2Aisin Corporation
- Method for joining members and joined body29 Apr 2025US 12,285,795 B2Kobe Steel, Ltd.
- Fastening member, bonded joint, and method for manufacturing bonded joint15 Jan 2026US 2026/0014822 A1Nippon Steel Corporation
- Tubular member flange attachment and methods of attaching a flange to a tubular member18 Dec 2025US 2025/0381591 A1Bobrick Washroom Equipment, Inc.
- Method of determining a wall thickness reduction, %wr of pipes fixed in pipe sheet holes, system therefore and use of the method25 Sep 2025US 2025/0296138 A1Vestas Aircoil A/S
- Piercing nut28 Aug 2025US 2025/0271020 A1Shinjo Holdings Co., Ltd.
- Method and device for manufacturing rotor for rotary electric machine24 Jul 2025US 2025/0239923 A1Aisin Corporation
Most cited
By later US patents
- Annular tube-like driver127US 4,637,436 ARaychem Corporation · 1987
- Tube repairs113US 4,205,422 AYorkshire Imperial Metals Limited · 1980
- Mandrel for hydraulically expanding a tube into engagement with a tubesheet111US 4,159,564 AWestinghouse Electric Corp. · 1979
- Method for fixing a tube by expansion107US 4,413,395 AVallourec · 1983
- Process for lining a peripheral tube of a steam generator104US 4,827,594 AFramatome · 1989