B24B 21/16
Machines or devices using grinding or polishing belts: for grinding other surfaces
Official title: for grinding other surfaces of particular shape (single purpose machines for grinding cams or camshafts B24B19/12)
B24B21/16 (Machines or devices using grinding or polishing belts: for grinding other surfaces) appears on 104 US grants and 75 published applications in this corpus.
Search patents in B24B- Granted patents
- 104
- Published applications
- 75
- Assignees
- 75
- Inventors
- 238
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 2 |
| 2006 | 3 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 5 |
| 2010 | 1 | 4 |
| 2011 | 5 | 1 |
| 2012 | 2 | 5 |
| 2013 | 2 | 2 |
| 2014 | 3 | 2 |
| 2015 | 4 | 6 |
| 2016 | 4 | 1 |
| 2017 | 1 | 6 |
| 2018 | 3 | 7 |
| 2019 | 6 | 6 |
| 2020 | 3 | 2 |
| 2021 | 5 | 0 |
| 2022 | 3 | 4 |
| 2023 | 0 | 1 |
| 2024 | 2 | 8 |
| 2025 | 1 | 4 |
| 2026 | 4 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Robotic polishing system and method for using same18 Aug 2026US 12,708,976 B2Pratt & Whitney Canada Corp.
- Robotic polishing system and method for using same5 May 2026US 12,617,102 B2Pratt & Whitney Canada Corp.
- Machining unit and method for machining a component10 Mar 2026US 12,571,430 B2Aktiebolaget Skf
- Belt loading method and device for material removal tool24 Feb 2026US 12,558,755 B2Pratt & Whitney Canada Corp.
- Grinding tool for grinding a leading edge of a wind turbine blade2 Sep 2025US 12,403,558 B2Vestas Wind Systems A/S
- Robotic deep rolling tool design for surface texturing to control friction and coating bonding2 Oct 2025US 2025/0303519 A1Rtx Corporation
- Polishing system and method of polishing a component15 May 2025US 2025/0153308 A1ROLLS-ROYCE plc
- A machining device1 May 2025US 2025/0135597 A1
- Substrate processing method and substrate processing apparatus9 Jan 2025US 2025/0010421 A1Ebara Corporation
- Polishing bladed rotor using robotic polishing device27 Jun 2024US 2024/0207994 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Method of texturing a substrate using an abrasive article having multiple abrasive natures81US 5,645,471 AMinnesota Mining and Manufacturing Company · 1997
- Apparatus for lapping and polishing optical surfaces50US 4,850,152 ACarl-Zeiss-Stiftung · 1989
- Computer controlled grinding machine for producing objects with complex shapes50US 5,193,314 AGeneral Electric Company · 1993
- Apparatus and methods for repairing compressor airfoils in situ43US 7,032,279 B2General Electric Company · 2006
- Roller cam microfinishing tooling27US 4,993,191 AIndustrial Metal Products Corporation · 1991