B21D 13/04
Corrugating sheet metal, rods or profiles: by rolling
Official title: by rolling
B21D13/04 (Corrugating sheet metal, rods or profiles: by rolling) appears on 239 US grants and 155 published applications in this corpus.
Search patents in B21D- Granted patents
- 239
- Published applications
- 155
- Assignees
- 150
- Inventors
- 468
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 7 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 6 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 7 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 8 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 8 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 9 | 3 |
| 2002 | 3 | 4 |
| 2003 | 7 | 5 |
| 2004 | 2 | 7 |
| 2005 | 5 | 9 |
| 2006 | 3 | 9 |
| 2007 | 1 | 5 |
| 2008 | 4 | 9 |
| 2009 | 2 | 7 |
| 2010 | 4 | 6 |
| 2011 | 8 | 9 |
| 2012 | 7 | 12 |
| 2013 | 6 | 5 |
| 2014 | 7 | 4 |
| 2015 | 9 | 7 |
| 2016 | 2 | 4 |
| 2017 | 6 | 4 |
| 2018 | 4 | 7 |
| 2019 | 8 | 6 |
| 2020 | 5 | 6 |
| 2021 | 5 | 5 |
| 2022 | 4 | 5 |
| 2023 | 1 | 4 |
| 2024 | 8 | 5 |
| 2025 | 2 | 6 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multi-speed lightweight gutter machine28 Jul 2026US 12,691,485 B2Spartan Machine LLC
- Roller tooth profile of work roll for roll forming of flow channel of metal bipolar plate and parametric design method thereof2 Sep 2025US 12,403,552 B2Taiyuan University of Science and Technology
- Asynchronous heating and calendering device, large wide ultra-thin lithium metal foil, preparation method therefor, and application thereof7 Jan 2025US 12,191,474 B2Beijing Welion New Energy Technology Co., Ltd
- Method and system for manufacturing hybrid component24 Dec 2024US 12,172,364 B2Hyundai Motor Company
- Heat exchanger, refrigeration cycle apparatus, method of manufacturing corrugated fin, and manufacturing apparatus for manufacturing corrugated fin10 Dec 2024US 12,163,743 B2Mitsubishi Electric Corporation
- Accurate rolling line alignment for forming aluminum heat exchangers13 Aug 2026US 2026/0233282 A1GM Global Technology Operations LLC
- Corrugated plate, flow path plate, and corrugated plate manufacturing device16 Jul 2026US 2026/0199956 A1Aisin Corporation
- Roller offset forming tool and method of mitigating distortion in a metal sheet13 Nov 2025US 2025/0345837 A1GM Global Technology Operations LLC
- Method for producing at least one component element for a furniture fitting11 Sep 2025US 2025/0281961 A1Julius Blum GmbH
- Magnesium alloy molded article and manufacturing method thereof3 Jul 2025US 2025/0215547 A1Massive Lab Inc.
Most cited
By later US patents
- Methods of fabricating bodies95US 4,098,722 AUnited Kingdom Atomic Energy Authority · 1978
- Apparatus and method for forming annular grooves on the outer surface of a cable or tube59US 8,465,235 B2Miniflex Limited · 2013
- Corrugated plate having variable material thickness and method for making same58US 4,241,146 A1980
- Device and a method for embossing a metal foil41US 5,007,271 A1991
- Siding panels and the method of production40US 4,130,974 AAlcan Aluminum Corporation · 1978