B23F 9/02
Making gears having teeth curved in their longitudinal direction: by grinding
Official title: by grinding
B23F9/02 (Making gears having teeth curved in their longitudinal direction: by grinding) appears on 57 US grants and 43 published applications in this corpus.
Search patents in B23F- Granted patents
- 57
- Published applications
- 43
- Assignees
- 29
- Inventors
- 94
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 2 | 2 |
| 2008 | 2 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 2 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 6 |
| 2014 | 0 | 0 |
| 2015 | 6 | 2 |
| 2016 | 0 | 5 |
| 2017 | 2 | 3 |
| 2018 | 3 | 1 |
| 2019 | 4 | 4 |
| 2020 | 3 | 3 |
| 2021 | 2 | 2 |
| 2022 | 2 | 2 |
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
| 2025 | 0 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Roller taper grinding method for planetary roller screw mechanism28 Jul 2026US 12,691,546 B2Chongqing University
- Gearbox9 Jun 2026US 12,650,157 B2Wittenstein AG
- Process for machining a gear workpiece, and corresponding pair of gears9 Apr 2024US 11,951,555 B2Klingelnberg GmbH
- Method for machining bevel gears using an eccentrically-moved dressable cup grinding wheel7 Nov 2023US 11,806,798 B2Klingelnberg GmbH
- Method for grinding finish machining of gearwheels21 Jun 2022US 11,364,560 B2Klingelnberg GmbH
- Gearbox23 Oct 2025US 2025/0327509 A1Wittenstein AG
- Apparatus For Loading And Unloading A Machine Tool For Machining Toothing Systems27 Mar 2025US 2025/0100096 A1Reishauer AG
- Roller taper grinding method for planetary roller screw mechanism25 Apr 2024US 2024/0131650 A1Chongqing University
- Gearwheel, method for producing a gearwheel, and method for measuring a gearwheel30 Nov 2023US 2023/0383832 A1Klingelnberg GmbH
- Method for machining and measuring workpieces1 Dec 2022US 2022/0379395 A1Klingelnberg GmbH
Most cited
By later US patents
- Multi-axis bevel and hypoid gear generating machine65US 4,981,402 AThe Gleason Works · 1991
- Method of generating bevel and hypoid gears34US 5,116,173 AThe Gleason Works · 1992
- Method of machining during indexing31US 5,800,103 AThe Gleason Works · 1998
- Machine and method for producing bevel gears27US 6,712,566 B2The Gleason Works · 2004
- Method of making ring gear and ring gear therefrom22US 4,949,456 AEaton Corporation · 1990