B24B 21/006
Machines or devices using grinding or polishing belts: for special purposes
Official title: {for special purposes, e.g. for television tubes, car bumpers}
B24B21/006 (Machines or devices using grinding or polishing belts: for special purposes) appears on 42 US grants and 62 published applications in this corpus.
Search patents in B24B- Granted patents
- 42
- Published applications
- 62
- Assignees
- 52
- Inventors
- 145
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 2 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 3 | 4 |
| 2013 | 1 | 2 |
| 2014 | 1 | 3 |
| 2015 | 4 | 3 |
| 2016 | 2 | 6 |
| 2017 | 3 | 3 |
| 2018 | 1 | 2 |
| 2019 | 4 | 6 |
| 2020 | 1 | 3 |
| 2021 | 3 | 4 |
| 2022 | 1 | 5 |
| 2023 | 1 | 3 |
| 2024 | 3 | 4 |
| 2025 | 4 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cylinder device and method of manufacturing piston rod17 Mar 2026US 12,576,468 B2Hitachi Astemo, Ltd.
- Paint repair process by scenario15 Apr 2025US 12,275,038 B23M Innovative Properties Company
- Multiple degree of freedom compliant actuator force control systems and methods used in robotic paint repair28 Jan 2025US 12,208,481 B23M Innovative Properties Company
- Method for controlling repairing apparatus and repairing apparatus14 Jan 2025US 12,194,593 B2Chongqing Hkc Optoelectronics Technology Co., Ltd.
- Method for coordinating an identification and the processing of a defect of a workpiece and device for carrying out the method14 Jan 2025US 12,198,218 B2Rud. Starcke GmbH & Co. KG
- Substrate processing apparatus16 Jul 2026US 2026/0200034 A1Ebara Corporation
- Method of manufacturing piston rod25 Jun 2026US 2026/0175346 A1Astemo, Ltd.
- Apparatus for grinding surface of steel sheet4 Sep 2025US 2025/0276419 A1Dms Korea Co., Ltd.
- Skate blade and apparatus for removing material from a skate blade20 Feb 2025US 2025/0058424 A1Bauer Hockey, LLC
- Outer Diameter Cleaning and Sanding Tube28 Nov 2024US 2024/0391045 A1
Most cited
By later US patents
- Camshaft belt grinder22US 4,833,834 AGeneral Motors Corporation · 1989
- Turbine blade tip finishing apparatus12US 4,309,848 AUnited Technologies Corporation · 1982
- Lensed optical fiber having high coupling efficiency, process of production and apparatus for production of same, and laser diode module11US 6,597,835 B2Furukawa Electric Co., Ltd. · 2003
- Belt grinder for sharpening ice skate blades and the like6US 4,403,455 A1983
- Polisher6US 5,367,835 ACrawford-Swift Limited · 1994