B24B 5/22
For grinding cylindrical surfaces
Official title: for grinding cylindrical surfaces, e.g. on bolts
B24B5/22 (For grinding cylindrical surfaces) appears on 68 US grants and 57 published applications in this corpus.
Search patents in B24B- Granted patents
- 68
- Published applications
- 57
- Assignees
- 60
- Inventors
- 171
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 1 |
| 2004 | 2 | 2 |
| 2005 | 1 | 3 |
| 2006 | 4 | 1 |
| 2007 | 4 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 2 | 2 |
| 2011 | 1 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 3 |
| 2014 | 1 | 1 |
| 2015 | 3 | 1 |
| 2016 | 3 | 6 |
| 2017 | 1 | 3 |
| 2018 | 2 | 4 |
| 2019 | 4 | 2 |
| 2020 | 1 | 9 |
| 2021 | 2 | 1 |
| 2022 | 1 | 2 |
| 2023 | 1 | 5 |
| 2024 | 3 | 2 |
| 2025 | 1 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Over-positioning grinding method of hard and brittle pipe fitting with large length-to-diameter ratio28 Apr 2026US 12,611,746 B1Tianjin University
- Cylinder device and method of manufacturing piston rod17 Mar 2026US 12,576,468 B2Hitachi Astemo, Ltd.
- Grinding tool kit, apparatus and method for finish machining of rolling surface of bearing roller6 Jan 2026US 12,515,291 B2Tianjin University
- Centerless roll grinding machine with reduced radial variation errors25 Feb 2025US 12,233,506 B2
- Centerless grinding through the application of a helical twist to axial grooves3 Dec 2024US 12,157,199 B2BorgWarner Inc.
- Method of manufacturing piston rod25 Jun 2026US 2026/0175346 A1Astemo, Ltd.
- A workrest for a grinding machine7 Aug 2025US 2025/0249543 A1Fives Landis Limited
- Grinding machine and square rod attitude adjusting method20 Feb 2025US 2025/0058427 A1Fuzhou Skywiretech Co.,Ltd.
- Pipe coating removal apparatus28 Nov 2024US 2024/0391047 A1
- Oil well pumping system polished rod protective device29 Feb 2024US 2024/0066655 A1
Most cited
By later US patents
- Centerless grinding machine36US 4,570,387 AToyoda Koki Kabushiki Kaisha · 1986
- Centerless and center-type grinding system24US 4,712,332 AEnergy-Adaptive Grinding, Inc. · 1987
- Centerless grinding process and apparatus therefor20US 5,643,051 AUniversity of Connecticut · 1997
- Method and apparatus for fine working or microfinishing19US 5,245,793 ASupfina Maschinenfabrik Hentzen KG · 1993
- Apparatus for microfinishing16US 5,447,463 ASupfina Maschinenfabrik Hentzen KG · 1995