B21D 26/051
Deforming double-walled bodies
B21D26/051 (Deforming double-walled bodies) appears on 46 US grants and 32 published applications in this corpus.
Search patents in B21D- Granted patents
- 46
- Published applications
- 32
- Assignees
- 39
- Inventors
- 97
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 2 |
| 2003 | 3 | 2 |
| 2004 | 1 | 1 |
| 2005 | 2 | 0 |
| 2006 | 1 | 4 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 3 |
| 2012 | 2 | 2 |
| 2013 | 1 | 0 |
| 2014 | 1 | 2 |
| 2015 | 2 | 3 |
| 2016 | 1 | 2 |
| 2017 | 3 | 0 |
| 2018 | 0 | 2 |
| 2019 | 2 | 2 |
| 2020 | 3 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 2 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Joining method, and device for such13 Jan 2026US 12,521,782 B2Mahle International GmbH
- Internal hydroforming method for manufacturing heat pipe wicks utilizing a hollow mandrel and sheath21 Oct 2025US 12,447,521 B2Westinghouse Electric Corp.
- Method for manufacturing a double-wall heat-exchanger tube26 Aug 2025US 12,397,339 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Double tube with petal shape and method of manufacturing the same10 Aug 2021US 11,085,706 B2Pusan National University Industry-University Cooperation Foundation
- Tailor-layered tube with thickness deviations and method of manufacturing the same13 Oct 2020US 10,801,647 B2Pusan National University Industry-University Cooperation Foundation
- Longitudinal chamber profile preform and method23 Jul 2026US 2026/0208253 A1Zieta Prozessdesign SpóLka Z Ograniczona Odpowiedzialnoscia
- Internal hydroforming method for manufacturing heat pipe wicks utilizing a hollow mandrel and sheath12 Feb 2026US 2026/0042135 A1Westinghouse Electric Corp.
- Joining method, and device for such17 Jul 2025US 2025/0229316 A1Mahle International GmbH
- Method for manufacturing a double-wall heat-exchanger tube5 Dec 2024US 2024/0399440 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Internal hydroforming method for manufacturing heat pipe wicks utilizing a hollow mandrel and sheath20 Jul 2023US 2023/0226587 A1Westinghouse Electric Corp.
Most cited
By later US patents
- Method of securing a sleeve within a tube279US 4,069,573 ACombustion Engineering, Inc. · 1978
- Method of forming a double wall, air gap exhaust duct component66US 5,170,557 ABenteler Industries, Inc. · 1992
- Method of producing multiple-wall composite pipes50US 4,332,073 AKawasaki Jukogyo Kabushiki Kaisha · 1982
- Method of forming reinforced box-selection frame members41US 4,759,111 ATI Automotive Division of TI Canada Inc. · 1988
- Multi-stage dual wall hydroforming38US 5,363,544 ABenteler Industries, Inc. · 1994