B24B 41/04
Headstocks
Official title: Headstocks; Working-spindles; Features relating thereto
B24B41/04 (Headstocks) appears on 659 US grants and 566 published applications in this corpus.
Search patents in B24B- Granted patents
- 659
- Published applications
- 566
- Assignees
- 422
- Inventors
- 1,362
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 7 | 0 |
| 1989 | 2 | 0 |
| 1990 | 12 | 0 |
| 1991 | 6 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 8 | 0 |
| 1995 | 6 | 0 |
| 1996 | 14 | 0 |
| 1997 | 16 | 0 |
| 1998 | 15 | 0 |
| 1999 | 26 | 0 |
| 2000 | 31 | 0 |
| 2001 | 39 | 12 |
| 2002 | 30 | 24 |
| 2003 | 25 | 35 |
| 2004 | 16 | 20 |
| 2005 | 27 | 18 |
| 2006 | 28 | 22 |
| 2007 | 11 | 19 |
| 2008 | 12 | 15 |
| 2009 | 11 | 20 |
| 2010 | 8 | 22 |
| 2011 | 9 | 10 |
| 2012 | 15 | 9 |
| 2013 | 15 | 19 |
| 2014 | 11 | 14 |
| 2015 | 10 | 12 |
| 2016 | 11 | 11 |
| 2017 | 12 | 15 |
| 2018 | 15 | 32 |
| 2019 | 16 | 29 |
| 2020 | 11 | 26 |
| 2021 | 13 | 28 |
| 2022 | 14 | 37 |
| 2023 | 21 | 40 |
| 2024 | 32 | 35 |
| 2025 | 34 | 25 |
| 2026 | 12 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Grinding machine and method of operating a grinding machine1 Sep 2026US 12,722,243 B2Adelbert Haas GmbH
- Robotic polishing system and method for using same18 Aug 2026US 12,708,976 B2Pratt & Whitney Canada Corp.
- Machine tool for the robot-supported machining of workpieces with two rotatable tools18 Aug 2026US 12,708,982 B2FerRobotics Compliant Robot Technology GmbH
- Grinding tool for grinding buttons on a rock drill bit2 Jun 2026US 12,643,158 B2C.M.E. Blasting & Mining Equipment Ltd.
- Adjustable stroke device with cam2 Jun 2026US 12,644,505 B2Lake Country Tool, LLC
- Adjustable Stroke Device With Cam10 Sep 2026US 2026/0266360 A1Lake Country Tool, LLC
- Assistive apparatus for a grinding tool27 Aug 2026US 2026/0249421 A1Structural Services, Inc.
- Grinding and cleaning tool27 Aug 2026US 2026/0249422 A1Hong Ann Tool Industries Co., Ltd.
- Substrate polishing system23 Jul 2026US 2026/0208317 A1Samsung Electronics Co., Ltd.
- Device For Grinding A Workpiece And/Or Dressing A Tool16 Jul 2026US 2026/0200037 A1Reishauer AG
Most cited
By later US patents
- Spindle structure in ultrasonic machine and supporting horn used in the same379US 6,762,535 B2Takesho Co., Ltd. · 2004
- Carrier head design for a chemical mechanical polishing apparatus187US 5,762,544 AAPPLIED Materials.Inc. · 1998
- Polishing pads for a semiconductor substrate104US 6,126,532 ACabot Corporation · 2000
- Polishing pads and methods relating thereto88US 6,022,268 ARodel Holdings, Inc. · 2000
- Flattening polishing device and flattening polishing method84US 6,386,956 B1Sony Corporation · 2002