B21D 13/00
Corrugating sheet metal, rods or profiles
Official title: Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form (tubes B21D15/00)
B21D13/00 (Corrugating sheet metal, rods or profiles) appears on 502 US grants and 374 published applications in this corpus.
Search patents in B21D- Granted patents
- 502
- Published applications
- 374
- Assignees
- 309
- Inventors
- 981
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 10 | 0 |
| 1978 | 13 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 9 | 0 |
| 1982 | 9 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 9 | 0 |
| 1986 | 7 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 9 | 0 |
| 1990 | 7 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 10 | 0 |
| 1994 | 10 | 0 |
| 1995 | 5 | 0 |
| 1996 | 9 | 0 |
| 1997 | 12 | 0 |
| 1998 | 9 | 0 |
| 1999 | 9 | 0 |
| 2000 | 10 | 0 |
| 2001 | 16 | 6 |
| 2002 | 8 | 12 |
| 2003 | 13 | 9 |
| 2004 | 6 | 13 |
| 2005 | 10 | 17 |
| 2006 | 11 | 13 |
| 2007 | 6 | 7 |
| 2008 | 8 | 12 |
| 2009 | 3 | 15 |
| 2010 | 10 | 16 |
| 2011 | 9 | 19 |
| 2012 | 13 | 19 |
| 2013 | 14 | 14 |
| 2014 | 13 | 11 |
| 2015 | 17 | 19 |
| 2016 | 14 | 22 |
| 2017 | 20 | 12 |
| 2018 | 14 | 24 |
| 2019 | 20 | 14 |
| 2020 | 11 | 16 |
| 2021 | 13 | 16 |
| 2022 | 17 | 19 |
| 2023 | 6 | 12 |
| 2024 | 19 | 14 |
| 2025 | 13 | 16 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B21D 13/04Corrugating sheet metal, rods or profiles: by rolling239
- B21D 13/02Corrugating sheet metal, rods or profiles: by pressing175
- B21D 13/10Into a peculiar profiling shape78
- B21D 13/08Corrugating sheet metal, rods or profiles: by combined methods22
- B21D 13/06Corrugating sheet metal, rods or profiles: by drawing5
Recent patents
- Multi-speed lightweight gutter machine28 Jul 2026US 12,691,485 B2Spartan Machine LLC
- Compressive stress forming systems and methods28 Jul 2026US 12,691,486 B2Magna International Inc.
- Pleating machine for manufacturing corrugated wire mesh19 May 2026US 12,629,739 B2Industrial Climate Solutions, Inc.
- Sheet material forming17 Mar 2026US 12,576,440 B2Hadley Industries Overseas Holdings Limited
- Cable bending system18 Nov 2025US 12,472,551 B2TE Connectivity Solutions GmbH
- Press forming method for metal plate and press apparatus20 Aug 2026US 2026/0241430 A1Honda Motor Co., Ltd.
- Method for producing an embossing tool for bipolar plates and embossing tool20 Aug 2026US 2026/0241432 A1ElringKlinger AG
- 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
- Methods and systems for production of handpans2 Jul 2026US 2026/0188286 A1
Most cited
By later US patents
- Surgical stapler anvil with nested staple forming pockets2,439US 6,953,138 B12005
- Metal-forming die and method for manufacturing same1,085US 7,086,267 B22006
- Methods of fabricating bodies95US 4,098,722 AUnited Kingdom Atomic Energy Authority · 1978
- Fabricating bodies67US 3,966,646 AUnited Kingdom Atomic Energy Authority · 1976
- Batten elements for securing tiles to a roof and method of making the battens67US 6,393,796 B12002