B23D 31/002
Breaking machines, i.e. pre-cutting and subsequent breaking
Official title: {Breaking machines, i.e. pre-cutting and subsequent breaking}
B23D31/002 (Breaking machines, i.e. pre-cutting and subsequent breaking) appears on 198 US grants and 108 published applications in this corpus.
Search patents in B23D- Granted patents
- 198
- Published applications
- 108
- Assignees
- 119
- Inventors
- 337
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 7 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 9 | 0 |
| 1993 | 8 | 0 |
| 1994 | 7 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 1 |
| 2002 | 4 | 9 |
| 2003 | 7 | 6 |
| 2004 | 8 | 10 |
| 2005 | 6 | 9 |
| 2006 | 4 | 6 |
| 2007 | 3 | 1 |
| 2008 | 2 | 8 |
| 2009 | 5 | 4 |
| 2010 | 4 | 6 |
| 2011 | 4 | 7 |
| 2012 | 3 | 4 |
| 2013 | 3 | 2 |
| 2014 | 2 | 6 |
| 2015 | 5 | 4 |
| 2016 | 1 | 6 |
| 2017 | 9 | 4 |
| 2018 | 4 | 2 |
| 2019 | 3 | 5 |
| 2020 | 3 | 1 |
| 2021 | 4 | 3 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 2 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Cast iron pipe cutter4 Nov 2025US 12,459,145 B2
- Blanking machine and blanking method for bar or pipe material28 Mar 2023US 11,612,945 B2Xi' An Jiaotong University
- Hammer31 Aug 2021US 11,103,875 B1Genesis III, Inc.
- Profiled metal fiber4 May 2021US 10,995,493 B2Hacanoka GmbH
- Splitting apparatus and splitting method16 Mar 2021US 10,946,460 B2Toyota Jidosha Kabushiki Kaisha
- Method for producing at least one component element for a furniture fitting11 Sep 2025US 2025/0281961 A1Julius Blum GmbH
- Method and devices for workpiece separation and for dividing up a remaining grid of a workpiece separation27 Feb 2025US 2025/0065529 A1TRUMPF Werkzeugmaschinen GmbH + Co. KG
- Force Generator for Generating a Linear Compressive Force16 May 2024US 2024/0159343 A1Viega Technology GmbH & Co. KG
- Method for producing at least one component element for a furniture fitting9 May 2024US 2024/0149319 A1Julius Blum GmbH
- Cast Iron Pipe Cutter2 Dec 2021US 2021/0370538 A1
Most cited
By later US patents
- Method and apparatus for notching a lead wire attached to an IC chip to facilitate severing the wire105US 5,067,382 ACray Computer Corporation · 1991
- Method of making a split bearing assembly55US 4,569,109 AGeneral Motors Corporation · 1986
- Split bearing assemblies51US 4,684,267 AGeneral Motors Corporation · 1987
- Split bearing assemblies, method for making47US 4,860,419 AGeneral Motors Corporation · 1989
- Multiple part tubular member and method and apparatus for manufacture thereof40US 3,994,054 ABrunswick Corporation · 1976