B23P 15/32
Twist-drills
Official title: twist-drills
B23P15/32 (Twist-drills) appears on 171 US grants and 165 published applications in this corpus.
Search patents in B23P- Granted patents
- 171
- Published applications
- 165
- Assignees
- 106
- Inventors
- 352
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 8 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 5 |
| 2003 | 3 | 2 |
| 2004 | 1 | 3 |
| 2005 | 1 | 5 |
| 2006 | 3 | 4 |
| 2007 | 1 | 2 |
| 2008 | 4 | 6 |
| 2009 | 2 | 3 |
| 2010 | 0 | 8 |
| 2011 | 2 | 11 |
| 2012 | 4 | 6 |
| 2013 | 2 | 10 |
| 2014 | 7 | 14 |
| 2015 | 8 | 11 |
| 2016 | 11 | 11 |
| 2017 | 13 | 9 |
| 2018 | 10 | 9 |
| 2019 | 8 | 8 |
| 2020 | 4 | 6 |
| 2021 | 3 | 8 |
| 2022 | 2 | 4 |
| 2023 | 7 | 3 |
| 2024 | 3 | 7 |
| 2025 | 4 | 5 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Drill body and manufacturing method of drill body28 Jul 2026US 12,691,507 B2Tungaloy Corporation
- Constant rake fluted drill bit and method of manufacture21 Apr 2026US 12,605,795 B1
- Hole making tool for aramid fiber-reinforced plastic and design method thereof26 Aug 2025US 12,397,384 B2Dalian University of Technology
- Force modulation cartridge system for a drill bit24 Jun 2025US 12,337,428 B2Beijing Huamei, Inc.
- Drill bit13 May 2025US 12,296,395 B2Milwaukee Electric Tool Corporation
- Veined tool blank and drill20 Aug 2026US 2026/0241498 A1AB Sandvik Coromant
- Drilling tool, blank for drilling tool, and method for manufacturing blank for drilling tool11 Jun 2026US 2026/0158563 A1Osg Corporation
- Method for laser-based machining of an elongate workpiece, and laser machining device for carrying out the method26 Mar 2026US 2026/0084245 A1Rollomatic S.A.
- Trolley assembly for drilling mast1 Jan 2026US 2026/0001178 A1Caterpillar Inc.
- Woodworking drill and production process thereof1 May 2025US 2025/0135680 A1Zhejiang Yusheng Tools Co., Ltd.
Most cited
By later US patents
- Tool for cutting machining84US 5,947,660 ASeco Tools AB · 1999
- Method of making a sintered body having an internal channel73US 4,881,431 AFried. Krupp Gesellscahft mit beschrankter Haftung · 1989
- Methods for manufacturing endodontic instruments by milling64US 7,322,105 B2Ultradent Products, Inc. · 2008
- Rotary cutting tool of cemented carbide59US 4,642,003 AMitsubishi Kinzoku Kabushiki Kaisha · 1987
- Drill bit and method of metallurgical and mechanical holding of cutters in a drill bit57US 4,453,605 ANL Industries, Inc. · 1984