B21J 13/00
Details of machines for forging, pressing, or hammering
B21J13/00 (Details of machines for forging, pressing, or hammering) appears on 800 US grants and 501 published applications in this corpus.
Search patents in B21J- Granted patents
- 800
- Published applications
- 501
- Assignees
- 428
- Inventors
- 1,512
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 18 | 0 |
| 1977 | 22 | 0 |
| 1978 | 15 | 0 |
| 1979 | 12 | 0 |
| 1980 | 16 | 0 |
| 1981 | 24 | 0 |
| 1982 | 20 | 0 |
| 1983 | 28 | 0 |
| 1984 | 15 | 0 |
| 1985 | 18 | 0 |
| 1986 | 14 | 0 |
| 1987 | 21 | 0 |
| 1988 | 13 | 0 |
| 1989 | 15 | 0 |
| 1990 | 13 | 0 |
| 1991 | 22 | 0 |
| 1992 | 13 | 0 |
| 1993 | 14 | 0 |
| 1994 | 9 | 0 |
| 1995 | 5 | 0 |
| 1996 | 11 | 0 |
| 1997 | 7 | 0 |
| 1998 | 10 | 0 |
| 1999 | 12 | 0 |
| 2000 | 8 | 0 |
| 2001 | 15 | 6 |
| 2002 | 17 | 9 |
| 2003 | 8 | 20 |
| 2004 | 10 | 10 |
| 2005 | 8 | 12 |
| 2006 | 13 | 23 |
| 2007 | 13 | 13 |
| 2008 | 13 | 6 |
| 2009 | 7 | 13 |
| 2010 | 7 | 9 |
| 2011 | 7 | 14 |
| 2012 | 7 | 16 |
| 2013 | 14 | 24 |
| 2014 | 13 | 23 |
| 2015 | 25 | 41 |
| 2016 | 25 | 28 |
| 2017 | 35 | 32 |
| 2018 | 31 | 32 |
| 2019 | 21 | 29 |
| 2020 | 24 | 36 |
| 2021 | 21 | 25 |
| 2022 | 30 | 21 |
| 2023 | 12 | 26 |
| 2024 | 21 | 12 |
| 2025 | 22 | 8 |
| 2026 | 6 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Autogenic canister for metal recycling by indirect hot extrusion30 Jun 2026US 12,667,885 B2LeTourneau University
- Sheet metal coining method utilizing bilateral coin punching16 Jun 2026US 12,654,216 B2Schaeffler Technologies AG & Co. KG
- Forging press for hot forging of asymmetric to symmetric rail and process of forging thereof26 May 2026US RE50,897 E1Savita Nowar
- Method for manufacturing golf club head with sole textures by precision forging12 May 2026US 12,623,274 B2
- Insulating die plate, forging press and ceramic insulating body28 Apr 2026US 12,611,707 B2SMS group GmbH
- Connecting system and pressing tool for a connecting system8 Oct 2026US 2026/0309256 A1Henn GmbH & Co KG.
- Hot forging die and production method therefor1 Oct 2026US 2026/0295656 A1
- Presswork-based thickness addition forming method and expandable member13 Aug 2026US 2026/0233292 A1Yorozu Corporation
- Forming tool, forming tool assembly, forming machine, forming method and computer program for producing a cylindrical workpiece having a helical outer contour by means of swaging16 Jul 2026US 2026/0199959 A1FELSS Systems GmbH
- Tool holder clamp and storage2 Jul 2026US 2026/0184033 A1OP S.r.l.
Most cited
By later US patents
- Method for producing male conical threads117US 4,689,984 A1987
- Surgical needle-suture combination and apparatus and method for attaching the same85US 5,201,760 AAmerican Cyanamid Company · 1993
- Adjustable form die70US 5,546,784 AGrumman Aerospace Corporation · 1996
- Semi-automatic tool changer42US 4,387,502 AThe National Machinery Company · 1983
- Process and apparatus for producing an electrical battery pole or terminal42US 4,776,197 AAquila Piombo per Caccia e Tiro S.r.l. · 1988