B23Q 5/40
By feed shaft
Official title: by feed shaft, e.g. lead screw
B23Q5/40 (By feed shaft) appears on 374 US grants and 174 published applications in this corpus.
Search patents in B23Q- Granted patents
- 374
- Published applications
- 174
- Assignees
- 221
- Inventors
- 670
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 10 | 0 |
| 1985 | 12 | 0 |
| 1986 | 13 | 0 |
| 1987 | 7 | 0 |
| 1988 | 8 | 0 |
| 1989 | 9 | 0 |
| 1990 | 10 | 0 |
| 1991 | 11 | 0 |
| 1992 | 12 | 0 |
| 1993 | 9 | 0 |
| 1994 | 16 | 0 |
| 1995 | 8 | 0 |
| 1996 | 15 | 0 |
| 1997 | 11 | 0 |
| 1998 | 13 | 0 |
| 1999 | 16 | 0 |
| 2000 | 6 | 0 |
| 2001 | 10 | 6 |
| 2002 | 14 | 13 |
| 2003 | 7 | 9 |
| 2004 | 14 | 11 |
| 2005 | 3 | 5 |
| 2006 | 7 | 5 |
| 2007 | 6 | 3 |
| 2008 | 2 | 6 |
| 2009 | 2 | 5 |
| 2010 | 3 | 6 |
| 2011 | 10 | 6 |
| 2012 | 5 | 4 |
| 2013 | 6 | 12 |
| 2014 | 8 | 7 |
| 2015 | 4 | 5 |
| 2016 | 4 | 8 |
| 2017 | 11 | 7 |
| 2018 | 6 | 6 |
| 2019 | 9 | 8 |
| 2020 | 2 | 7 |
| 2021 | 3 | 7 |
| 2022 | 8 | 8 |
| 2023 | 3 | 8 |
| 2024 | 4 | 4 |
| 2025 | 7 | 3 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Machine tool21 Jul 2026US 12,686,090 B2Dmg Mori Co., Ltd.
- High-speed nut rotating feeding lead screw device23 Jun 2026US 12,661,748 B2Kede Numerical Control Co., Ltd.
- CNC machine, workstation and components12 May 2026US 12,623,312 B2
- Linkage swing head structure9 Dec 2025US 12,491,592 B2Kede Numerical Control Co., Ltd.
- Apparatus for active contact force control in machining and handling operations2 Dec 2025US 12,485,512 B2AMTOS SOLUTIONS d.o.o.
- Abnormality determination method and abnormality determination device for feed shaft clamp mechanism of machine tool1 Oct 2026US 2026/0295757 A1Makino Milling Machine Co., Ltd.
- Cnc machine, workstation and components20 Aug 2026US 2026/0241500 A1
- Rotation assistance device, and assistance mechanism position adjustment mechanism for shaft support device25 Jun 2026US 2026/0177102 A1Nsk Ltd.
- Vertical machining center18 Jun 2026US 2026/0166668 A1Kede Numerical Control Co., Ltd.
- Ball screw assembly and methods for controlling the same23 Apr 2026US 2026/0110351 A1
Most cited
By later US patents
- Mechanism for screw drive and syringe plunger engagement/disengagement263US 4,424,720 AIVAC Corporation · 1984
- Six-axis machine tool94US 5,028,180 A1991
- Cutting depth adjusting mechanism of a router89US 4,770,573 ARyobi Ltd. · 1988
- Six-axis machine tool78US 4,988,244 AKearney & Trecker Corporation · 1991
- Precision parallel translation system70US 4,492,356 AHitachi, Ltd. · 1985