B23B 51/0006
Drills with cutting inserts
Official title: {Drills with cutting inserts (B23B51/0002 takes precedence)}
B23B51/0006 (Drills with cutting inserts) appears on 239 US grants and 134 published applications in this corpus.
Search patents in B23B- Granted patents
- 239
- Published applications
- 134
- Assignees
- 98
- Inventors
- 379
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 7 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 8 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 5 | 0 |
| 1993 | 9 | 0 |
| 1994 | 8 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 8 | 0 |
| 1998 | 14 | 0 |
| 1999 | 9 | 0 |
| 2000 | 11 | 0 |
| 2001 | 7 | 3 |
| 2002 | 3 | 10 |
| 2003 | 10 | 8 |
| 2004 | 4 | 6 |
| 2005 | 7 | 3 |
| 2006 | 2 | 0 |
| 2007 | 2 | 2 |
| 2008 | 2 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 2 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 0 |
| 2017 | 3 | 5 |
| 2018 | 2 | 8 |
| 2019 | 3 | 11 |
| 2020 | 6 | 14 |
| 2021 | 14 | 16 |
| 2022 | 8 | 9 |
| 2023 | 7 | 11 |
| 2024 | 5 | 8 |
| 2025 | 7 | 7 |
| 2026 | 8 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Drilling tool22 Sep 2026US 12,741,324 B2Tungaloy Corporation
- Cutting insert with seating surface and lip support25 Aug 2026US 12,715,052 B2Kennametal Inc.
- Modular rotary cutting tools18 Aug 2026US 12,708,947 B2Kennametal Inc.
- Indexable drilling tool11 Aug 2026US 12,703,029 B2Zhuzhou Cemented Carbide Cutting Tools Co., Ltd.
- Drilling tools and inserts with coolant relief and method4 Aug 2026US 12,697,668 B2Allied Machine & Engineering Corp.
- Step drill bits8 Oct 2026US 2026/0307156 A1
- Modular rotary cutting tools17 Sep 2026US 2026/0273631 A1Kennametal Inc.
- Efficient drilling tool with strong chip removal ability16 Jul 2026US 2026/0199989 A1Zhuzhou Cemented Carbide Cutting Tools Co., Ltd.
- Stress-reducing, torque transmission design for modular drills9 Apr 2026US 2026/0097437 A1Kennametal Inc.
- Drill5 Mar 2026US 2026/0061501 A1Sumitomo Electric Hardmetal Corp.
Most cited
By later US patents
- Non-metallic body cutting tools111US 5,865,571 ANorton Company · 1999
- Sintered diamond drill bits and method of making106US 5,443,337 A1995
- Sintered diamond drill bits and method of making96US 6,029,544 A2000
- Method for improving wear resistance of abrasive tools93US 6,227,188 B1Norton Company · 2001
- Sintered diamond drill bits and method of making92US 5,611,251 A1997