B21D 39/203
Expandable by fluid or elastic material
Official title: {expandable by fluid or elastic material}
B21D39/203 (Expandable by fluid or elastic material) appears on 160 US grants and 72 published applications in this corpus.
Search patents in B21D- Granted patents
- 160
- Published applications
- 72
- Assignees
- 71
- Inventors
- 200
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 11 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 8 | 0 |
| 1989 | 7 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 1 |
| 2003 | 3 | 2 |
| 2004 | 0 | 3 |
| 2005 | 3 | 6 |
| 2006 | 4 | 0 |
| 2007 | 4 | 1 |
| 2008 | 4 | 2 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 2 |
| 2015 | 1 | 2 |
| 2016 | 2 | 3 |
| 2017 | 1 | 1 |
| 2018 | 1 | 7 |
| 2019 | 5 | 8 |
| 2020 | 4 | 8 |
| 2021 | 9 | 6 |
| 2022 | 3 | 3 |
| 2023 | 2 | 4 |
| 2024 | 6 | 4 |
| 2025 | 4 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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 joining members and joined body29 Apr 2025US 12,285,795 B2Kobe Steel, Ltd.
- Vehicle structural member and method for manufacturing same15 Apr 2025US 12,275,457 B2Kobe Steel, Ltd.
- Method for joining members, and composite elastic body used in said method21 Jan 2025US 12,202,028 B2Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Producing a Body Element21 May 2026US 2026/0138454 A1Bayerische Motoren Werke Aktiengesellschaft
- 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 the multi-axis shaping of a hollow workpiece and supporting core for use in the method20 Mar 2025US 2025/0091114 A1Uniflex-Hydraulik GmbH
- Joined body, method of manufacturing joined body, and shock absorber26 Sep 2024US 2024/0318701 A1Hitachi Astemo, Ltd.
Most cited
By later US patents
- Deformable member175US 6,896,049 B2Zeroth Technology Ltd. · 2005
- Self-centering seal for use in hydraulically expanding tubes152US 4,359,889 AHaskel Engineering & Supply Company · 1982
- Sleeving method134US 4,368,571 AWestinghouse Electric Corp. · 1983
- Internal sleeve with a plurality of lands and teeth125US 5,667,252 AFramatome Technologies, Inc. · 1997
- Method for the sealtight jointing of a flanged sleeve to a pipeline, especially for repairing subsea pipelines laid on very deep sea bottoms123US 4,388,752 ANuovo Pignone S.p.A. · 1983