B24B 21/20
For controlling or adjusting the tracking or the tension of the grinding
Official title: for controlling or adjusting the tracking or the tension of the grinding belt
B24B21/20 (For controlling or adjusting the tracking or the tension of the grinding) appears on 134 US grants and 114 published applications in this corpus.
Search patents in B24B- Granted patents
- 134
- Published applications
- 114
- Assignees
- 72
- Inventors
- 253
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 3 |
| 2002 | 6 | 5 |
| 2003 | 7 | 5 |
| 2004 | 4 | 3 |
| 2005 | 8 | 3 |
| 2006 | 6 | 5 |
| 2007 | 2 | 11 |
| 2008 | 7 | 2 |
| 2009 | 2 | 4 |
| 2010 | 2 | 2 |
| 2011 | 4 | 4 |
| 2012 | 1 | 5 |
| 2013 | 2 | 1 |
| 2014 | 4 | 5 |
| 2015 | 8 | 9 |
| 2016 | 7 | 3 |
| 2017 | 6 | 6 |
| 2018 | 5 | 9 |
| 2019 | 5 | 5 |
| 2020 | 2 | 4 |
| 2021 | 3 | 0 |
| 2022 | 4 | 5 |
| 2023 | 1 | 2 |
| 2024 | 4 | 5 |
| 2025 | 2 | 4 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Robotic polishing system and method for using same5 May 2026US 12,617,102 B2Pratt & Whitney Canada Corp.
- Platen apparatus and turbine contact wheel thereof for belt grinders20 Jan 2026US 12,528,148 B2Moen Tooling LLC
- Adjustable speed belt-disc sander13 Jan 2026US 12,521,834 B1Duro Industries, LLC
- Method for determining state information relating to a belt grinder by means of a machine learning system26 Aug 2025US 12,397,392 B2Robert Bosch GmbH
- Belt sander15 Apr 2025US 12,275,114 B2Basso Industry Corp.
- Grinding belt unit for double-sided sheet metal processing6 Aug 2026US 2026/0225203 A1ARKU Maschinenbau GmbH
- Knife sharpening mechanism with an adjustable sharpening angle and an electric knife sharpener25 Jun 2026US 2026/0175344 A1
- Platen Apparatus and Turbine Contact Wheel Thereof for Belt Grinders30 Apr 2026US 2026/0115854 A1Moen Tooling LLC
- Conveyor platform structure having a belt tension adjustment device2 Apr 2026US 2026/0091461 A1Yeon Chuan Machinery Co., Ltd.
- Water Cooled Sanding Table with Room Heater Attachment18 Sep 2025US 2025/0289092 A1
Most cited
By later US patents
- Polishing machine having a taut microabrasive strip and an improved wafer support head126US 5,335,453 ACommissariat A L' Energie Atomique · 1994
- Web-format planarizing machines and methods for planarizing microelectronic substrate assemblies108US 6,261,163 B1Micron Technology, Inc. · 2001
- Web-format planarizing machines and methods for planarizing microelectronic substrate assemblies104US 6,306,014 B1Micron Technology, Inc. · 2001
- Method and apparatus for aligning and tensioning a pad/belt used in linear planarization for chemical mechanical polishing59US 5,871,390 ALam Research Corporation · 1999
- Cutting tool sharpener41US 8,696,407 B2Darex, LLC · 2014