B23Q 5/12
Mechanical drives with means for varying the speed ratio
B23Q5/12 (Mechanical drives with means for varying the speed ratio) appears on 101 US grants and 60 published applications in this corpus.
Search patents in B23Q- Granted patents
- 101
- Published applications
- 60
- Assignees
- 73
- Inventors
- 169
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 7 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 3 |
| 2003 | 1 | 4 |
| 2004 | 4 | 4 |
| 2005 | 2 | 2 |
| 2006 | 2 | 2 |
| 2007 | 2 | 1 |
| 2008 | 3 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 1 | 4 |
| 2013 | 0 | 3 |
| 2014 | 2 | 1 |
| 2015 | 0 | 2 |
| 2016 | 2 | 3 |
| 2017 | 1 | 5 |
| 2018 | 4 | 2 |
| 2019 | 5 | 3 |
| 2020 | 3 | 4 |
| 2021 | 1 | 3 |
| 2022 | 1 | 1 |
| 2023 | 2 | 3 |
| 2024 | 1 | 0 |
| 2025 | 0 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Spindle turning device6 Oct 2026US 12,753,825 B2Okuma Corporation
- Apparatus for operating main shaft of machine tool13 Feb 2024US 11,897,072 B2Dn Solutions Co., Ltd.
- Machine tool17 Oct 2023US 11,787,003 B2Fanuc Corporation
- Tool presetting and/or tool measuring apparatus device, tool presetting and/or tool measuring apparatus and method for operating the tool presetting and/or tool measuring apparatus device18 Apr 2023US 11,628,531 B2E. Zoller GmbH & Co. KG Einstell-Und MessgeräTe
- Dual speed rotary tool15 Nov 2022US 11,498,172 B2Air Turbine Technologies, Inc.
- Spindle turning device16 Oct 2025US 2025/0320907 A1Okuma Corporation
- Machine tool, machine tool control system, and machine tool control method8 May 2025US 2025/0144759 A1Dmg Mori Co., Ltd.
- Power tool with a specific output current16 Jan 2025US 2025/0018530 A1Hilti Aktiengesellschaft
- Conveniently Operated Electronic Lathe26 Oct 2023US 2023/0339057 A1Shandong Shansen Numerical Control Technology Co, Ltd
- Machine tool19 Oct 2023US 2023/0330798 A1Brother Kogyo Kabushiki Kaisha
Most cited
By later US patents
- Multispeed power tool transmission84US 6,984,188 B2Black & Decker Inc. · 2006
- First stage clutch79US 6,676,557 B2Black & Decker Inc. · 2004
- Two-speed power tool69US 4,834,192 AAtlas Copco Aktiebolag · 1989
- Multispeed power tool transmission68US 7,101,300 B2Black & Decker Inc. · 2006
- Power tool with torque clutch55US 7,900,714 B2Black & Decker Inc. · 2011