B24B
Machines, devices, or processes for grinding or polishing
Official title: MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING (grinding of gear teeth B23F, of screw-threads B23G1/36; by electro-erosion B23H; abrasive or related blasting B24C; tools for grinding, buffing or sharpening B24D; polishing compositions C09G1/00; abrasives C09K3/14; electrolytic etching or polishing C25F3/00; grinding arrangements for use on assembled railway tracks E01B31/17); DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
B24B (Machines, devices, or processes for grinding or polishing) appears on 23,395 US grants and 20,066 published applications in this corpus.
Search patents in B24B- Granted patents
- 23,395
- Published applications
- 20,066
- Assignees
- 5,957
- Inventors
- 33,979
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 242 | 0 |
| 1977 | 228 | 0 |
| 1978 | 213 | 0 |
| 1979 | 156 | 0 |
| 1980 | 187 | 0 |
| 1981 | 200 | 0 |
| 1982 | 137 | 0 |
| 1983 | 156 | 0 |
| 1984 | 205 | 0 |
| 1985 | 265 | 0 |
| 1986 | 235 | 0 |
| 1987 | 243 | 0 |
| 1988 | 237 | 0 |
| 1989 | 261 | 0 |
| 1990 | 279 | 0 |
| 1991 | 298 | 0 |
| 1992 | 310 | 0 |
| 1993 | 292 | 0 |
| 1994 | 286 | 0 |
| 1995 | 260 | 0 |
| 1996 | 363 | 0 |
| 1997 | 455 | 0 |
| 1998 | 485 | 0 |
| 1999 | 605 | 0 |
| 2000 | 791 | 0 |
| 2001 | 922 | 377 |
| 2002 | 891 | 907 |
| 2003 | 866 | 888 |
| 2004 | 815 | 930 |
| 2005 | 791 | 893 |
| 2006 | 827 | 775 |
| 2007 | 597 | 817 |
| 2008 | 410 | 732 |
| 2009 | 385 | 725 |
| 2010 | 387 | 708 |
| 2011 | 445 | 649 |
| 2012 | 505 | 621 |
| 2013 | 567 | 672 |
| 2014 | 539 | 777 |
| 2015 | 582 | 833 |
| 2016 | 628 | 738 |
| 2017 | 603 | 785 |
| 2018 | 616 | 833 |
| 2019 | 676 | 864 |
| 2020 | 636 | 837 |
| 2021 | 493 | 851 |
| 2022 | 522 | 801 |
| 2023 | 659 | 825 |
| 2024 | 660 | 858 |
| 2025 | 587 | 773 |
| 2026 | 397 | 597 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- B24B 37/00Lapping machines or devices8,597
- B24B 49/00Measuring or gauging equipment for controlling the feed movement of the grinding3,782
- B24B 41/00Component parts such as frames, beds, carriages, headstocks2,512
- B24B 23/00Portable grinding machines2,080
- B24B 7/00Machines or devices designed for grinding plane surfaces on work, including polishing1,984
- B24B 9/00Machines or devices designed for grinding edges or bevels on work or1,890
- B24B 53/00Devices or means for dressing or conditioning abrasive surfaces1,833
- B24B 19/00Single-purpose machines or devices for particular grinding operations not covered by any1,728
All 28 main groupsShow fewer
- B24B 55/00Safety devices for grinding or polishing machines1,563
- B24B 27/00Machines, devices, or processes for grinding or polishing: other grinding machines or1,462
- B24B 5/00Machines or devices designed for grinding surfaces of revolution on work, including1,278
- B24B 3/00Sharpening cutting edges1,196
- B24B 13/00Machines or devices designed for grinding or polishing optical surfaces on lenses1,188
- B24B 1/00Processes of grinding or polishing1,142
- B24B 21/00Machines or devices using grinding or polishing belts1,130
- B24B 57/00Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents1,046
- B24B 47/00Drives or gearings876
- B24B 31/00Machines or devices designed for polishing or abrading surfaces on work by732
- B24B 45/00Means for securing grinding wheels on rotary arbors572
- B24B 29/00Machines or devices for polishing surfaces on work by means of tools531
- B24B 51/00Arrangements for automatic control of a series of individual steps in grinding499
- B24B 39/00Burnishing machines or devices, i.e. requiring pressure members for compacting the surface390
- B24B 33/00Honing machines or devices389
- B24B 35/00Machines or devices designed for superfinishing surfaces on work, i.e. by means177
- B24B 17/00Special adaptations of machines or devices for grinding controlled by patterns, drawings148
- B24B 11/00Machines or devices designed for grinding spherical surfaces or parts of spherical135
- B24B 15/00Machines or devices designed for grinding seat surfaces134
- B24B 25/00Grinding machines of universal type22
Recent patents
- Power tool6 Oct 2026US 12,752,345 B2Robert Bosch GmbH
- Wafer grinding method6 Oct 2026US 12,752,389 B2Disco Corporation
- Optical thickness control during a chemical mechanical polishing process and apparatus for effecting the same6 Oct 2026US 12,752,390 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Substrate polishing apparatus6 Oct 2026US 12,752,391 B2Kctech Co., Ltd.
- Grinding apparatus and grinding method6 Oct 2026US 12,752,392 B2Disco Corporation
- Sanding pad having a sealing element and a rib structure, and sanding machine8 Oct 2026US 2026/0307197 A1Festool GmbH
- Inline Cut-Off Tool8 Oct 2026US 2026/0307198 A1Black & Decker Inc.
- Method and Apparatus for Generating a Reciprocating Sanding or Polishing Path8 Oct 2026US 2026/0307199 A1ABB Schweiz AG
- Semiconductor processing tool and methods of operation8 Oct 2026US 2026/0307200 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Polishing method, polishing apparatus, and computer-readable storage medium8 Oct 2026US 2026/0307201 A1Ebara Corporation
Most cited
By later US patents
- Industrial endoscope system having a rotary treatment member1,407US 5,155,941 AOlympus Optical Co., Ltd. · 1992
- Controlled electro-pneumatic power tools and interactive consumable1,078US 9,061,392 B22015
- Grinding apparatus for blending defects on turbine blades and associated method of use1,035US 6,899,593 B12005
- Hand tool machine having an oscillatory drive880US 8,397,832 B2C. & E. Fein GmbH · 2013
- Microsurgical cutting instruments712US 8,499,673 B2Mynosys Cellular Devices, Inc. · 2013