B21D 53/085
With fins places on zig-zag tubes or parallel tubes
Official title: {with fins places on zig-zag tubes or parallel tubes}
B21D53/085 (With fins places on zig-zag tubes or parallel tubes) appears on 211 US grants and 139 published applications in this corpus.
Search patents in B21D- Granted patents
- 211
- Published applications
- 139
- Assignees
- 95
- Inventors
- 433
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 8 | 0 |
| 1987 | 6 | 0 |
| 1988 | 9 | 0 |
| 1989 | 9 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 10 | 0 |
| 1993 | 10 | 0 |
| 1994 | 2 | 0 |
| 1995 | 9 | 0 |
| 1996 | 5 | 0 |
| 1997 | 8 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 2 |
| 2002 | 3 | 7 |
| 2003 | 6 | 6 |
| 2004 | 3 | 8 |
| 2005 | 5 | 11 |
| 2006 | 5 | 7 |
| 2007 | 3 | 2 |
| 2008 | 1 | 4 |
| 2009 | 1 | 3 |
| 2010 | 1 | 4 |
| 2011 | 2 | 8 |
| 2012 | 5 | 2 |
| 2013 | 4 | 6 |
| 2014 | 2 | 10 |
| 2015 | 2 | 7 |
| 2016 | 5 | 7 |
| 2017 | 7 | 4 |
| 2018 | 3 | 5 |
| 2019 | 7 | 7 |
| 2020 | 6 | 6 |
| 2021 | 6 | 2 |
| 2022 | 6 | 7 |
| 2023 | 4 | 3 |
| 2024 | 2 | 4 |
| 2025 | 1 | 5 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fin assembling method24 Feb 2026US 12,560,391 B2Daikin Industries, Ltd.
- Heat exchanger and method for processing heat exchanger4 Nov 2025US 12,460,872 B2Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd.
- Method for producing heat exchanger17 Dec 2024US 12,168,273 B2Danfoss A/S
- Radiator with adapted fins29 Oct 2024US 12,133,359 B2Asetek Danmark A/S
- Finned tube heat exchangers and methods for manufacturing same5 Dec 2023US 11,835,306 B2Rheem Manufacturing Company
- Fin assembling method7 May 2026US 2026/0126250 A1Daikin Industries, Ltd.
- Method for manufacturing heat exchanger5 Feb 2026US 2026/0034620 A1Daikin Industries, Ltd.
- Heat transfer pipe, heat exchanger, pipe expanding tool, pipe expanding device, method for connecting heat transfer pipe and pipe, and method for manufacturing heat exchanger28 Aug 2025US 2025/0271218 A1Mitsubishi Electric Corporation
- Method for manufacturing heat exchanger26 Jun 2025US 2025/0205836 A1Daikin Industries, Ltd.
- Manufacturing device and manufacturing method for heat exchanger and transport carriage used for manufacturing device16 Jan 2025US 2025/0018511 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Heat exchanger141US 6,964,296 B2Modine Manufacturing Company · 2005
- Heat exchanger and method for manufacturing the heat exchanger45US 5,099,576 ASanden Corporation · 1992
- Deterioration resistant chambers for inductively coupled plasma production40US 6,946,063 B1Advanced Energy Industries, Inc. · 2005
- Heat exchanger and method of assembly thereof37US 5,150,520 AThe Allen Group Inc. · 1992
- Tube expander37US 5,806,173 AHidaka Seiki Kabushiki Kaisha · 1998