B23F 21/128
In exchangeable arrangement
Official title: {in exchangeable arrangement}
B23F21/128 (In exchangeable arrangement) appears on 20 US grants and 20 published applications in this corpus.
Search patents in B23F- Granted patents
- 20
- Published applications
- 20
- Assignees
- 14
- Inventors
- 38
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 2 |
| 2014 | 0 | 2 |
| 2015 | 2 | 2 |
| 2016 | 3 | 2 |
| 2017 | 1 | 0 |
| 2018 | 1 | 2 |
| 2019 | 1 | 1 |
| 2020 | 3 | 2 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 2 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device and method for producing bevels on tooth flanks of gearwheels16 Jun 2026US 12,654,244 B2Profilator GmbH & Co. KG
- Method for producing back-tapers on teeth of a gearing of a workpiece in the form of a gearwheel8 Apr 2025US 12,269,103 B2Präwema Antriebstechnik GmbH
- Cutting insert and gear cutter8 Oct 2024US 12,109,638 B2Tungaloy Corporation
- Tool for producing back-tapers on teeth of a gearing of a workpiece in the form of a gearwheel28 Nov 2023US 11,826,841 B2Präwema Antriebstechnik GmbH
- Gear machining apparatus and gear machining method17 Oct 2023US 11,786,985 B2Jtekt Corporation
- Method for Producing Back-Tapers on Teeth of a Gearing of a Workpiece in the Form of a Gearwheel8 Feb 2024US 2024/0042537 A1Präwema Antriebstechnik GmbH
- Device And Method For Producing Bevels On Tooth Flanks Of Gearwheels28 Sep 2023US 2023/0302558 A1Profilator GmbH & Co. KG
- Cutting insert and gear cutter12 May 2022US 2022/0143721 A1Tungaloy Corporation
- Tool for Producing Back-Tapers on Teeth of a Gearing of a Workpiece in the Form of a Gearwheel23 Dec 2021US 2021/0394291 A1Präwema Antriebstechnik GmbH
- Gear machining apparatus and gear machining method23 Jul 2020US 2020/0230724 A1Jtekt Corporation
Most cited
By later US patents
- Skiving tool comprising cutter bars12US 8,950,301 B2Klingelnberg GmbH · 2015
- Tool for machining tooth flanks and method of finishing tooth flanks10US 4,720,220 AMaag Gear-Wheel & Machine Company Limited · 1988
- Mainrotor machining process and apparatus7US 5,598,618 A1997
- Milling insert4US 9,475,135 B2Sandvik Intellectual Property AB · 2016
- Milling tool as well as set of milling inserts of a milling tool3US 8,961,075 B2Sandvik Intellectual Property AB · 2015