B23F 21/026
Grinding worms
Official title: {Grinding worms}
B23F21/026 (Grinding worms) appears on 44 US grants and 47 published applications in this corpus.
Search patents in B23F- Granted patents
- 44
- Published applications
- 47
- Assignees
- 33
- Inventors
- 82
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 3 | 1 |
| 2013 | 1 | 3 |
| 2014 | 1 | 3 |
| 2015 | 3 | 3 |
| 2016 | 1 | 3 |
| 2017 | 2 | 3 |
| 2018 | 1 | 1 |
| 2019 | 4 | 4 |
| 2020 | 2 | 1 |
| 2021 | 1 | 0 |
| 2022 | 2 | 6 |
| 2023 | 1 | 3 |
| 2024 | 3 | 4 |
| 2025 | 0 | 2 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for dressing a multi-flight worm grinding wheel for grinding teeth or similar profiles16 Jun 2026US 12,654,245 B2Kapp Niles GmbH & Co. KG
- Multilayer grindstone for gear grinding31 Dec 2024US 12,179,278 B2Noritake Co., Limited
- Method for cutting a gear, gear-cutting tool and gear-cutting machine19 Nov 2024US 12,145,209 B2Gleason Cutting Tools Corporation
- Method for grinding a gear wheel by means of a worm grinding wheel, and a dressing roll for dressing the worm grinding wheel29 Oct 2024US 12,128,491 B2Kapp Niles GmbH & Co. KG
- Method and grinding machine for grinding a gear wheel workpiece24 Jan 2023US 11,559,843 B2Klingelnberg GmbH
- Method for the continuous generating grinding of gears, and profiling method24 Sep 2026US 2026/0284762 A1Gleason Switzerland AG
- Tooth Flank Machining Device and Tooth Flank Machining Method13 Aug 2026US 2026/0233318 A1Honda Motor Co., Ltd.
- Tooth Flank Machining Device and Tooth Flank Machining Method13 Aug 2026US 2026/0233319 A1Honda Motor Co., Ltd.
- Method and device for producing a modified surface structure on a tooth flank23 Jul 2026US 2026/0208313 A1Reishauer AG
- Method and system for grinding workpiece11 Sep 2025US 2025/0281987 A1Honda Motor Co., Ltd.
Most cited
By later US patents
- Threaded grinding wheel and method of dressing41US 6,217,409 B1The Gleason Works · 2001
- Method for machining gearwheels30US 4,850,155 ALiebherr-Verzahntechnik GmbH · 1989
- Machine tool for fine machining the tooth flanks of pretoothed gearwheels30US 4,961,289 ALiebherr-Verzahntecknik GmbH · 1990
- Grinding and finishing worm19US 5,379,554 ACaterpillar Inc. · 1995
- Threaded grinding wheel, and method of dressing17US 5,738,569 AThe Gleason Works · 1998