B21D 53/06
Of metal tubes
Official title: of metal tubes
B21D53/06 (Of metal tubes) appears on 190 US grants and 244 published applications in this corpus.
Search patents in B21D- Granted patents
- 190
- Published applications
- 244
- Assignees
- 160
- Inventors
- 582
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 3 |
| 2008 | 0 | 2 |
| 2009 | 1 | 3 |
| 2010 | 1 | 15 |
| 2011 | 2 | 12 |
| 2012 | 3 | 18 |
| 2013 | 9 | 15 |
| 2014 | 5 | 17 |
| 2015 | 14 | 18 |
| 2016 | 13 | 9 |
| 2017 | 12 | 16 |
| 2018 | 8 | 19 |
| 2019 | 10 | 12 |
| 2020 | 10 | 14 |
| 2021 | 15 | 19 |
| 2022 | 16 | 11 |
| 2023 | 7 | 18 |
| 2024 | 16 | 5 |
| 2025 | 7 | 9 |
| 2026 | 6 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing heat conductive member and heat exchanger8 Sep 2026US 12,728,455 B2NGK Insulators, Ltd.
- Tubing cutter and methods to cut spine-fin tubing and couple a header tube to spine-fin tubing23 Jun 2026US 12,661,727 B2Arrow Fabricated Tubing, Inc.
- Methods for forming a wick16 Jun 2026US 12,654,219 B1Westinghouse Electric Corp.
- Double-tube heat exchanger and manufacturing method therefor26 May 2026US 12,638,241 B2Sumitomo Riko Company Limited
- Conformable cold plate for fluid cooling applications7 Apr 2026US 12,598,725 B2Intel Corporation
- Method for Producing a Folded Flat Tube23 Jul 2026US 2026/0208279 A1Mahle International GmbH
- Method for manufacturing a temperature control segment through which a liquid can flow11 Jun 2026US 2026/0158600 A1Mahle International GmbH
- Flow path forming member, manufacturing method therefor, and manufacturing apparatus thereof28 May 2026US 2026/0145221 A1Aisin Corporation
- Vessel charging system and method7 May 2026US 2026/0126247 A1ThermAvant Technologies, LLC
- Method for Configuring Cooling Tube of Battery Pack and Cooling Tube of Battery Pack9 Apr 2026US 2026/0100447 A1LG Energy Solution, Ltd.
Most cited
By later US patents
- Method of manufacturing a concentric tube heat exchanger50US 4,096,616 AGeneral Electric Company · 1978
- Heat exchange element30US 5,551,504 APackless Metal Hose, Inc. · 1996
- Method and apparatus for forming a heat exchanger turbulator and tube28US 4,761,982 AGeneral Motors Corporation · 1988
- Heat exchange element25US 5,409,057 APackless Metal Hose, Inc. · 1995
- Method of forming a heat exchanger tube23US 4,419,802 A1983