B23B 29/24
Tool holders for a plurality of cutting tools
Official title: Tool holders for a plurality of cutting tools, e.g. turrets {(indexing devices B23Q16/00)}
B23B29/24 (Tool holders for a plurality of cutting tools) appears on 291 US grants and 270 published applications in this corpus.
Search patents in B23B- Granted patents
- 291
- Published applications
- 270
- Assignees
- 174
- Inventors
- 564
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 8 | 0 |
| 1978 | 7 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 6 | 0 |
| 2001 | 1 | 0 |
| 2002 | 5 | 3 |
| 2003 | 3 | 3 |
| 2004 | 2 | 8 |
| 2005 | 6 | 8 |
| 2006 | 11 | 11 |
| 2007 | 6 | 10 |
| 2008 | 4 | 13 |
| 2009 | 4 | 10 |
| 2010 | 7 | 9 |
| 2011 | 7 | 6 |
| 2012 | 3 | 8 |
| 2013 | 7 | 11 |
| 2014 | 10 | 13 |
| 2015 | 8 | 18 |
| 2016 | 12 | 8 |
| 2017 | 9 | 14 |
| 2018 | 14 | 13 |
| 2019 | 14 | 12 |
| 2020 | 13 | 23 |
| 2021 | 15 | 5 |
| 2022 | 6 | 10 |
| 2023 | 6 | 19 |
| 2024 | 6 | 17 |
| 2025 | 10 | 9 |
| 2026 | 9 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B23B 29/242Turrets, without description of the angular positioning device78
- B23B 29/32Turrets adjustable by power drive, i.e. turret heads65
- B23B 29/26Tool holders in fixed position40
- B23B 29/248With individually adjustable toolholders32
- B23B 29/244Toolposts, i.e. clamping quick-change toolholders, without description of the angular positioning device31
- B23B 29/34Turrets equipped with triggers for releasing the cutting tools5
- B23B 29/28Turrets manually adjustable about a vertical or horizontal pivot4
Recent patents
- Tool rest and machine tool25 Aug 2026US 12,715,048 B2Dmg Mori Co., Ltd.
- Turret device16 Jun 2026US 12,654,232 B2Dmg Mori Co., Ltd.
- Machine tool16 Jun 2026US 12,654,268 B2Dmg Mori Co., Ltd.
- Turning tool and turning device2 Jun 2026US 12,643,157 B2Sumitomo Electric Industries, Ltd.
- Machine tool26 May 2026US 12,636,710 B2Mazak Corporation
- Rotary tool device and machine tool27 Aug 2026US 2026/0249412 A1Citizen Machinery Co., Ltd.
- Head for exchangeable-head cutting tool, and cutting tool6 Aug 2026US 2026/0225162 A1Tungaloy Corporation
- Shank member for exchangeable-head cutting tool, and cutting tool6 Aug 2026US 2026/0225163 A1Tungaloy Corporation
- Blocking device of tool holders on lathes16 Jul 2026US 2026/0199987 A1Algra S.P.A.
- Tool holder16 Jul 2026US 2026/0199988 A1PCM Precision Tooling SA
Most cited
By later US patents
- Tool changer for vertical boring machine1,027US 4,321,746 AWhite Consolidated Industries, Inc. · 1982
- Clamping device41US 4,135,418 AKennametal Inc. · 1979
- Numerically controlled lathe37US 4,413,539 ACitizen Watch Co., Ltd. · 1983
- Manual tool for preparing tube ends for jointure37US 4,899,409 A1990
- Turret lathe32US 4,006,518 AGiddings & Lewis, Inc. · 1977