B23B 51/10
Bits for countersinking
B23B51/10 (Bits for countersinking) appears on 433 US grants and 317 published applications in this corpus.
Search patents in B23B- Granted patents
- 433
- Published applications
- 317
- Assignees
- 243
- Inventors
- 716
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 10 | 0 |
| 1987 | 7 | 0 |
| 1988 | 6 | 0 |
| 1989 | 8 | 0 |
| 1990 | 5 | 0 |
| 1991 | 12 | 0 |
| 1992 | 12 | 0 |
| 1993 | 12 | 0 |
| 1994 | 6 | 0 |
| 1995 | 7 | 0 |
| 1996 | 12 | 0 |
| 1997 | 7 | 0 |
| 1998 | 19 | 0 |
| 1999 | 18 | 0 |
| 2000 | 8 | 0 |
| 2001 | 12 | 0 |
| 2002 | 4 | 8 |
| 2003 | 6 | 6 |
| 2004 | 3 | 12 |
| 2005 | 9 | 17 |
| 2006 | 14 | 17 |
| 2007 | 12 | 10 |
| 2008 | 7 | 8 |
| 2009 | 7 | 12 |
| 2010 | 5 | 22 |
| 2011 | 7 | 7 |
| 2012 | 7 | 5 |
| 2013 | 13 | 9 |
| 2014 | 10 | 8 |
| 2015 | 9 | 7 |
| 2016 | 6 | 15 |
| 2017 | 8 | 12 |
| 2018 | 10 | 17 |
| 2019 | 18 | 21 |
| 2020 | 11 | 21 |
| 2021 | 12 | 17 |
| 2022 | 14 | 20 |
| 2023 | 14 | 13 |
| 2024 | 6 | 20 |
| 2025 | 10 | 6 |
| 2026 | 8 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B23B 51/101Deburring tools92
- B23B 51/102Back spot-facing or chamfering87
- B23B 51/108Having a centering drill81
- B23B 51/107Having a pilot62
- B23B 51/105Deburring or countersinking of radial holes32
- B23B 51/109Counterboring tools31
- B23B 51/104With stops29
- B23B 51/103Deburring or chamfering tools for the ends of tubes or rods21
All 9 subgroupsShow fewer
Recent patents
- Plug cutting tool and related method of use15 Sep 2026US 12,734,594 B2National Nail Corp.
- Chamfering tool and rotary tool30 Jun 2026US 12,667,893 B2YUKI SANGYO Co., Ltd.
- Deburring tool23 Jun 2026US 12,661,722 B2Sugino Machine Limited
- Method and apparatus for machining a workpiece16 Jun 2026US 12,654,235 B2Broetje-Automation GmbH
- Processing tool12 May 2026US 12,623,294 B2Sugino Machine Limited
- Micro adjustable countersink tool and related methods1 Oct 2026US 2026/0295688 A1Katz-Moses Group, LLC
- Support jig and support method for cutting tool18 Jun 2026US 2026/0166666 A1IHI Corporation
- Cutting tool and indexable insert4 Jun 2026US 2026/0151836 A1Kennametal Inc.
- Chamfering tool30 Apr 2026US 2026/0115812 A1Sumitomo Electric Hardmetal Corp.
- Machine Tool12 Mar 2026US 2026/0070129 A1Star Micronics Co., Ltd.
Most cited
By later US patents
- Power tool having rotary input control1,053US 9,475,180 B2Black & Decker Inc. · 2016
- Power tool adapter137US 5,586,847 A1996
- Sintered diamond drill bits and method of making106US 5,443,337 A1995
- Damaged bolt and screw removing devices97US 7,171,871 B2Eazypower Corporation · 2007
- Sintered diamond drill bits and method of making96US 6,029,544 A2000