B23B 2270/20
Internally located features, machining or gripping of internal surfaces
B23B2270/20 (Internally located features, machining or gripping of internal surfaces) appears on 66 US grants and 58 published applications in this corpus.
Search patents in B23B- Granted patents
- 66
- Published applications
- 58
- Assignees
- 53
- Inventors
- 126
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 3 |
| 2007 | 3 | 2 |
| 2008 | 0 | 2 |
| 2009 | 1 | 2 |
| 2010 | 1 | 5 |
| 2011 | 1 | 2 |
| 2012 | 2 | 5 |
| 2013 | 4 | 1 |
| 2014 | 3 | 4 |
| 2015 | 0 | 3 |
| 2016 | 1 | 4 |
| 2017 | 5 | 1 |
| 2018 | 3 | 4 |
| 2019 | 2 | 2 |
| 2020 | 2 | 3 |
| 2021 | 2 | 4 |
| 2022 | 3 | 1 |
| 2023 | 1 | 3 |
| 2024 | 3 | 3 |
| 2025 | 1 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Workpiece retaining device19 May 2026US 12,629,756 B2Tpr Co., Ltd.
- Turning method, machining system, and non-transitory computer readable storage medium24 Mar 2026US 12,583,070 B2Yamazaki Mazak Corporation
- Method for producing a plain bearing sleeve, plain bearing sleeve, plain bearing and use thereof25 Mar 2025US 12,258,944 B2Schaeffler Technologies AG & Co. KG
- Multipurpose chuck3 Sep 2024US 12,076,794 B2Hammill Manufacturing Company, Co-op Tool Division
- Turning tool and turning method19 Mar 2024US 11,931,843 B2Mitsubishi Materials Corporation
- Cutting tool for boring, machining apparatus for boring and method for boring26 Jun 2025US 2025/0205791 A1Haru Technique Laboratory Inc.
- Method for producing a plain bearing sleeve, plain bearing sleeve, plain bearing and use thereof7 Nov 2024US 2024/0369042 A1Schaeffler Technologies AG & Co. KG
- Bulkhead removal device and method24 Oct 2024US 2024/0351116 A1Borealis Wind Inc.
- External and internal chamfer tool29 Feb 2024US 2024/0066612 A1
- Workpiece retaining device23 Nov 2023US 2023/0373012 A1Tpr Co., Ltd.
Most cited
By later US patents