B23D 41/00
Broaching machines or broaching devices characterised only by constructional features of particular
Official title: Broaching machines or broaching devices characterised only by constructional features of particular parts (constructional features of these parts per se B23Q)
B23D41/00 (Broaching machines or broaching devices characterised only by constructional features of particular) appears on 44 US grants and 20 published applications in this corpus.
Search patents in B23D- Granted patents
- 44
- Published applications
- 20
- Assignees
- 32
- Inventors
- 84
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 3 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 3 |
| 2022 | 3 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 2 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B23D 41/06Broaching machines or broaching devices characterised only by constructional features of particular18
- B23D 41/04Broaching machines or broaching devices characterised only by constructional features of particular15
- B23D 41/08Broaching machines or broaching devices characterised only by constructional features of particular11
- B23D 41/02Broaching machines or broaching devices characterised only by constructional features of particular10
Recent patents
- Stepped rotary broaches and methods and systems employing same4 Aug 2026US 12,697,670 B2
- Tool holder device for broaching and slotting10 May 2022US 11,325,197 B2Rev S.R.L. Unipersonale
- Methods of shaping slots with computer numerical controlled machining centers29 Mar 2022US 11,285,552 B2Ford Global Technologies, LLC
- Broaching machine and lathe comprising same4 Jan 2022US 11,213,902 B2Doosan Machine Tools Co., Ltd.
- Unit for broaching rules of die cutters and method to perform the broaching of a rule for die cutters5 Oct 2021US 11,135,663 B2Pro Form S.R.L.
- Stepped rotary broaches and methods and systems employing same5 Dec 2024US 2024/0399477 A1
- Method and apparatus for cutting grooves in a bore29 Aug 2024US 2024/0286209 A1Gühring KG
- An electric broaching press operating with an electric cylinder3 Aug 2023US 2023/0241693 A1
- Processing tool and processing tool assembly28 Jul 2022US 2022/0234116 A1
- Unit for broaching rules of die cutters and method to perform the broaching of a rule for die cutters29 Jul 2021US 2021/0229194 A1Pro Form S.R.L.
Most cited
By later US patents
- Infeed shuttle table for vertical broach15US 4,477,216 AThe Ohio Broach & Machine Company · 1984
- Workpiece holder for a vertical broaching machine for broaching annular workpieces14US 4,184,691 AOswald ForstMaschinenfabrik und Apparatebauanstalt GmbH · 1980
- Broaching machine improvements9US 4,212,573 ATy Miles, Inc. · 1980
- Vertical broaching machine for internal broaching6US 4,266,894 A1981
- Helical broach puller6US 4,859,125 ACrankshaft Machine Company · 1989