B23B 2251/047
Axial clearance angles
B23B2251/047 (Axial clearance angles) appears on 12 US grants and 12 published applications in this corpus.
Search patents in B23B- Granted patents
- 12
- Published applications
- 12
- Assignees
- 13
- Inventors
- 51
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 3 |
| 2023 | 0 | 0 |
| 2024 | 1 | 4 |
| 2025 | 2 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Drill9 Jun 2026US 12,649,191 B2Osg Corporation
- Cutting head having tip portion with radially extending front cutting edges provided with both negative and positive rake angles, and rotary cutting tool17 Jun 2025US 12,330,224 B2Iscar, Ltd.
- Drill and method of producing drilled product21 Jan 2025US 12,202,057 B2Subaru Corporation
- Rotatable cutting head having tip portion with three radially extending cutting edges forming a rectilinear rotational profile9 Apr 2024US 11,951,553 B2Iscar, Ltd.
- Drill14 Jan 2014US 8,628,278 B2Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
- Drill18 Jun 2026US 2026/0166633 A1Robert Bosch GmbH
- Drill and method of producing drilled product1 Aug 2024US 2024/0253132 A1Subaru Corporation
- Drill6 Jun 2024US 2024/0181542 A1Osg Corporation
- Drill bit with multi-stepped tip15 Feb 2024US 2024/0051039 A1
- Rotary Tool and Method for Manufacturing Such a Rotary Tool1 Feb 2024US 2024/0033832 A1
Most cited
By later US patents
- Drill41US 5,649,794 AMapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG · 1997
- Cutting tools for drilling concrete, aggregate, masonry or the like materials41US 6,345,940 B2Black & Decker Inc. · 2002
- Drill bit with three cutting edges30US 6,698,981 B1Seco Tools AB · 2004
- Drill bit and step feeding method29US 5,888,036 AHitachi Seiko Ltd. · 1999
- Burnishing drill14US 5,071,294 AAisan Kogyo Kabushiki Kaisha · 1991