B23B 51/0081
Conical drills
Official title: {Conical drills}
B23B51/0081 (Conical drills) appears on 52 US grants and 57 published applications in this corpus.
Search patents in B23B- Granted patents
- 52
- Published applications
- 57
- Assignees
- 30
- Inventors
- 58
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 2 |
| 2003 | 2 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 2 |
| 2006 | 0 | 3 |
| 2007 | 1 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 3 | 4 |
| 2013 | 2 | 0 |
| 2014 | 1 | 2 |
| 2015 | 0 | 2 |
| 2016 | 2 | 3 |
| 2017 | 2 | 5 |
| 2018 | 0 | 0 |
| 2019 | 6 | 7 |
| 2020 | 5 | 6 |
| 2021 | 4 | 2 |
| 2022 | 2 | 2 |
| 2023 | 1 | 0 |
| 2024 | 3 | 2 |
| 2025 | 4 | 4 |
By publication year. Applications have been published since 2001.
Recent patents
- Step drill bit7 Oct 2025US 12,434,308 B2Milwaukee Electric Tool Corporation
- Drill bit comprising a centering tip6 May 2025US 12,290,956 B2Colt Technologies GmbH
- Log splitter tool29 Apr 2025US 12,285,883 B1
- Twist drill8 Apr 2025US 12,269,101 B1
- Accessory tool12 Nov 2024US 12,138,694 B2Milwaukee Electric Tool Corporation
- Step drill bit18 Dec 2025US 2025/0381604 A1Milwaukee Electric Tool Corporation
- Extractor device10 Jul 2025US 2025/0221752 A1Shukla Medical
- Accessory tool23 Jan 2025US 2025/0025945 A1Milwaukee Electric Tool Corporation
- Drill bit16 Jan 2025US 2025/0018479 A1Nobel Biocare Services AG
- Extractor device3 Oct 2024US 2024/0327126 A1Shukla Medical
Most cited
By later US patents
- Damaged bolt and screw removing devices97US 7,171,871 B2Eazypower Corporation · 2007
- Rotary drill bit for hand-held power drills52US 4,189,266 A1980
- Conical seismic anchor and drill bit for use with unreinforced masonry structures30US 5,085,026 A1992
- Cranial perforator with reentrant cutting segment26US 4,884,571 AIntech Corporation · 1989
- Damaged bolt and screw removing devices26US 8,215,206 B2Combined Products Co. #1 Inc. · 2012