B23F 23/1243
Hob holders
Official title: {Hob holders}
B23F23/1243 (Hob holders) appears on 27 US grants and 18 published applications in this corpus.
Search patents in B23F- Granted patents
- 27
- Published applications
- 18
- Assignees
- 27
- Inventors
- 66
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 2 |
| 2015 | 1 | 2 |
| 2016 | 1 | 2 |
| 2017 | 2 | 0 |
| 2018 | 1 | 1 |
| 2019 | 2 | 2 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hob cutter arrangement14 Jul 2026US 12,678,874 B2Diametal A.G.
- Worm gear machine19 Nov 2024US 12,145,208 B2Chongqing University
- Gear manufacturing machine5 Apr 2022US 11,292,068 B2Liebherr-Verzahntechnik GmbH
- Main spindle unit and machine tool6 Oct 2020US 10,792,742 B2Mitsubishi Heavy Industries Machine Tool Co., Ltd.
- Method and device for forming teeth in a workpiece gear with reduced flank line shape error22 Oct 2019US 10,449,613 B2Profilator GmbH & Co. KG
- Tool head and method of operating a tool head22 Feb 2024US 2024/0058910 A1Reishauer AG
- Hob cutter arrangement17 Aug 2023US 2023/0256529 A1Diametal A.G.
- Worm gear machine13 Oct 2022US 2022/0324043 A1Chongqing University
- Gear manufacturing machine16 Apr 2020US 2020/0114441 A1Liebherr-Verzahntechnik GmbH
- Main spindle unit and machine tool29 Aug 2019US 2019/0262920 A1Mitsubishi Heavy Industries Machine Tool Co., Ltd.
Most cited
By later US patents
- Gear cutter24US 4,329,096 APower Engineering and Manufacturing, Ltd. · 1982
- Hobbing accessory for vertical milling machine22US 5,634,250 A2 M Tool Co., Inc. · 1997
- Composite-machining machine tool21US 5,205,806 ATsugami Corporation · 1993
- Gear hobbing machine16US 5,228,814 AThe Gleason Works · 1993
- Mandrel for receiving the tool in a hobbing machine or a similar machine8US 4,137,822 ACarl Hurth Maschinen- und Zahnradfabrik GmbH & Co. · 1979