B21K 25/005
Uniting components to form integral members: by friction heat forging
Official title: {by friction heat forging (B21J15/027 takes precedence; friction heat forging per se B21J5/063)}
B21K25/005 (Uniting components to form integral members: by friction heat forging) appears on 22 US grants and 31 published applications in this corpus.
Search patents in B21K- Granted patents
- 22
- Published applications
- 31
- Assignees
- 25
- Inventors
- 67
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 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 | 4 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 2 | 4 |
| 2016 | 0 | 0 |
| 2017 | 1 | 3 |
| 2018 | 3 | 4 |
| 2019 | 2 | 3 |
| 2020 | 4 | 3 |
| 2021 | 0 | 4 |
| 2022 | 2 | 1 |
| 2023 | 3 | 0 |
| 2024 | 0 | 1 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Methods for friction stir welding involving dissimilar materials4 Nov 2025US 12,459,052 B2Battelle Memorial Institute
- Rotor shaft14 Jan 2025US 12,199,492 B2Metal Forming & Coining Corporation
- Method for controlling a mechanical joining or forming process3 Oct 2023US 11,772,218 B2Atlas Copco IAS GmbH
- Method for joining a metal component and a polymer component, and structure comprising said components14 Mar 2023US 11,602,904 B2Aalto University Foundation sr
- System and method for connecting metal workpieces14 Feb 2023US 11,577,295 B2
- Rotor shaft16 Jan 2025US 2025/0023417 A1
- Methods and devices for connecting two dissimilar materials22 Feb 2024US 2024/0058891 A1Battelle Memorial Institute
- Rotor shaft6 Oct 2022US 2022/0320948 A1Metal Forming & Coining Corporation
- Metallic sheet securement17 Jun 2021US 2021/0178457 A1Utica Enterprises, Inc.
- Method for joining a metal component and a polymer component, and structure comprising said components27 May 2021US 2021/0154947 A1Aalto University Foundation sr
Most cited
By later US patents
- Method of joining metallic materials33US 6,843,405 B2Hitachi, Ltd. · 2005
- Friction welding flash trap seal30US 4,944,977 AA.R.D. Industries Ltd. · 1990
- Friction stirring interlocking of dissimilar materials24US 10,369,748 B2Battelle Memorial Institute · 2019
- System and method of friction welding a workpiece9US 9,713,854 B2ArvinMeritor Technology, LLC · 2017
- Riser components and methods for making the same7US 8,997,877 B2Advanced Joining Technologies, Inc. · 2015