B24B 21/002
Machines or devices using grinding or polishing belts: for grinding edges or
Official title: {for grinding edges or bevels}
B24B21/002 (Machines or devices using grinding or polishing belts: for grinding edges or) appears on 126 US grants and 130 published applications in this corpus.
Search patents in B24B- Granted patents
- 126
- Published applications
- 130
- Assignees
- 56
- Inventors
- 212
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 4 |
| 2004 | 4 | 5 |
| 2005 | 3 | 3 |
| 2006 | 5 | 4 |
| 2007 | 2 | 5 |
| 2008 | 3 | 5 |
| 2009 | 1 | 11 |
| 2010 | 2 | 4 |
| 2011 | 4 | 9 |
| 2012 | 2 | 8 |
| 2013 | 5 | 2 |
| 2014 | 5 | 5 |
| 2015 | 9 | 10 |
| 2016 | 10 | 7 |
| 2017 | 10 | 9 |
| 2018 | 5 | 8 |
| 2019 | 9 | 6 |
| 2020 | 3 | 2 |
| 2021 | 3 | 4 |
| 2022 | 4 | 2 |
| 2023 | 3 | 2 |
| 2024 | 2 | 7 |
| 2025 | 2 | 5 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Watch refurbishing devices and methods25 Nov 2025US 12,481,250 B1SwissWatchExpo, Inc.
- Polishing apparatus and polishing method3 Jun 2025US 12,318,888 B2Kioxia Corporation
- Skate blade and apparatus for removing material from a skate blade17 Dec 2024US 12,168,279 B2Bauer Hockey, LLC
- Automatic blade holder23 Jan 2024US 11,878,386 B2Prosharp Inc.
- Automatic blade holder7 Nov 2023US 11,806,826 B2Prosharp Inc.
- Polishing device13 Aug 2026US 2026/0233358 A1Ebara Corporation
- Substrate processing apparatus16 Jul 2026US 2026/0200034 A1Ebara Corporation
- Gripping support and robotic station for finishing a semi-finished piece, in particular a femoral component of a knee prosthesis16 Oct 2025US 2025/0318932 A1Robot Service S.R.L.
- Substrate polishing apparatus5 Jun 2025US 2025/0178149 A1Ebara Corporation
- Substrate polishing method5 Jun 2025US 2025/0178150 A1Ebara Corporation
Most cited
By later US patents
- Single-side polishing method for substrate edge, and apparatus therefor43US 6,402,596 B1SpeedFam-IPEC Corporation · 2002
- Apparatus for polishing the periphery portion of a wafer42US 5,476,413 AFujikoshi Machinery Corp. · 1995
- Methods of finishing an edge of a glass sheet30US 8,986,072 B2Corning Incorporated · 2015
- Method and apparatus for polishing the edge of a bonded wafer27US 6,641,464 B1Accretech USA, Inc. · 2003
- Blade sharpener24US 4,964,241 A1990