B21D 37/00
Tools as parts of machines covered by this subclass
B21D37/00 (Tools as parts of machines covered by this subclass) appears on 1,753 US grants and 1,841 published applications in this corpus.
Search patents in B21D- Granted patents
- 1,753
- Published applications
- 1,841
- Assignees
- 963
- Inventors
- 3,741
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 30 | 0 |
| 1977 | 7 | 0 |
| 1978 | 12 | 0 |
| 1979 | 9 | 0 |
| 1980 | 12 | 0 |
| 1981 | 8 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 11 | 0 |
| 1985 | 17 | 0 |
| 1986 | 17 | 0 |
| 1987 | 16 | 0 |
| 1988 | 18 | 0 |
| 1989 | 14 | 0 |
| 1990 | 22 | 0 |
| 1991 | 27 | 0 |
| 1992 | 14 | 0 |
| 1993 | 17 | 0 |
| 1994 | 25 | 0 |
| 1995 | 23 | 0 |
| 1996 | 10 | 0 |
| 1997 | 21 | 0 |
| 1998 | 21 | 0 |
| 1999 | 31 | 0 |
| 2000 | 22 | 0 |
| 2001 | 19 | 11 |
| 2002 | 22 | 19 |
| 2003 | 20 | 19 |
| 2004 | 12 | 39 |
| 2005 | 17 | 33 |
| 2006 | 30 | 28 |
| 2007 | 22 | 26 |
| 2008 | 11 | 43 |
| 2009 | 16 | 49 |
| 2010 | 24 | 59 |
| 2011 | 27 | 55 |
| 2012 | 45 | 54 |
| 2013 | 43 | 82 |
| 2014 | 41 | 81 |
| 2015 | 67 | 86 |
| 2016 | 71 | 100 |
| 2017 | 78 | 88 |
| 2018 | 68 | 120 |
| 2019 | 98 | 121 |
| 2020 | 76 | 117 |
| 2021 | 90 | 131 |
| 2022 | 115 | 114 |
| 2023 | 99 | 126 |
| 2024 | 93 | 98 |
| 2025 | 96 | 83 |
| 2026 | 39 | 59 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B21D 37/16Heating or cooling445
- B21D 37/14Particular arrangements for handling and holding in place complete dies335
- B21D 37/10Die sets286
- B21D 37/04Movable or exchangeable mountings for tools231
- B21D 37/20Making tools by operations not covered by a single other subclass205
- B21D 37/08Dies with different parts for several steps in a process173
- B21D 37/02Die constructions enabling assembly of the die parts in different ways118
- B21D 37/18Lubricating107
All 9 subgroupsShow fewer
Recent patents
- Flattening device6 Oct 2026US 12,752,328 B2Contemporary Amperex Technology (Hong Kong) Limited
- Floating cutter unit and trimming press processing device29 Sep 2026US 12,746,591 B2Oiles Corporation
- Steel sheet for hot press formed member22 Sep 2026US 12,741,447 B2Posco
- Apparatus and method for bending elongated metal products15 Sep 2026US 12,734,572 B2M. E. P. Macchine Elettroniche Piegatrici SpA
- Battery cell stack, method of manufacturing the same, and alignment mark forming apparatus for forming alignment mark at the battery cell stack15 Sep 2026US 12,738,553 B2LG Energy Solution, Ltd.
- Press-formed article manufacturing method1 Oct 2026US 2026/0295648 A1Jfe Steel Corporation
- Blank, production method for structural member and structural member1 Oct 2026US 2026/0296583 A1Nippon Steel Corporation
- Hot stamping system and method17 Sep 2026US 2026/0273606 A1
- Notching mold and method for notching an electrode plate27 Aug 2026US 2026/0249507 A1Samsung SDI.Co., Ltd.
- Information processor and information processing method27 Aug 2026US 2026/0252038 A1Murata Machinery, Ltd.
Most cited
By later US patents
- Process for the manufacture of laminated tooling98US 5,031,483 AW. R. Weaver Company · 1991
- Adjustable rod bending device for a corrective spinal rod which is used in a surgical operation97US 6,035,691 A2000
- Adjustable form die70US 5,546,784 AGrumman Aerospace Corporation · 1996
- Intelligent system for generating and executing a sheet metal bending plan70US 5,969,973 AAmada America, Inc. · 1999
- Method of forming a tubular blank into a structural component and die therefor68US 7,269,986 B2Hot Metal Gas Forming IP 2, Inc. · 2007