B23B 2251/68
Drills with provision for suction
B23B2251/68 (Drills with provision for suction) appears on 36 US grants and 49 published applications in this corpus.
Search patents in B23B- Granted patents
- 36
- Published applications
- 49
- Assignees
- 25
- Inventors
- 98
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 4 |
| 2013 | 2 | 0 |
| 2014 | 1 | 3 |
| 2015 | 0 | 2 |
| 2016 | 4 | 1 |
| 2017 | 6 | 6 |
| 2018 | 3 | 4 |
| 2019 | 2 | 1 |
| 2020 | 1 | 4 |
| 2021 | 1 | 2 |
| 2022 | 2 | 4 |
| 2023 | 2 | 4 |
| 2024 | 1 | 5 |
| 2025 | 2 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Drilling tool18 Aug 2026US 12,708,969 B2Robert Bosch GmbH
- Suction-extraction adapter29 Apr 2025US 12,285,832 B2Robert Bosch GmbH
- System and method for driving a power tool into a substrate using a negative pressure produced by a suction device7 Jan 2025US 12,185,897 B2Hilti Aktiengesellschaft
- Suction adapter for connecting an insertion tool to a suction apparatus1 Oct 2024US 12,103,126 B2Robert Bosch GmbH
- Drill for chiseling stone4 Jul 2023US 11,691,204 B2Hilti Aktlengesellschaft
- Suctioning cover for a core drill bit having a pressure regulating valve, and use of the suctioning cover3 Apr 2025US 2025/0108467 A1Hilti Aktiengesellschaft
- Tool bit with dust extracting device27 Feb 2025US 2025/0065419 A1Hilti Aktiengesellschaft
- Dust extracting device for a tool bit6 Feb 2025US 2025/0041952 A1Hilti Aktiengesellschaft
- Reaming tool vacuum assembly11 Jul 2024US 2024/0227047 A9International Business Machines Corporation
- Drilling Tool27 Jun 2024US 2024/0207992 A1Robert Bosch GmbH
Most cited
By later US patents
- Drill bit, hard member, and bit body72US 6,595,305 B1Kennametal Inc. · 2003
- System for extraction of volatiles from planetary bodies using microwave and RF processes32US 9,581,021 B22017
- Dust collecting device17US 9,296,079 B2Makita Corporation · 2016
- Drill bit and production method13US 9,364,927 B2Hilti Aktiengesellschaft · 2016
- Insert spacer assembly11US 5,226,489 AKennametal Inc. · 1993