B23B 2251/125
Rounded cutting edges
B23B2251/125 (Rounded cutting edges) appears on 17 US grants and 21 published applications in this corpus.
Search patents in B23B- Granted patents
- 17
- Published applications
- 21
- Assignees
- 16
- Inventors
- 43
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 2 |
| 2018 | 2 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 4 |
| 2022 | 1 | 2 |
| 2023 | 0 | 2 |
| 2024 | 1 | 2 |
| 2025 | 2 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Drill and cutting method21 Apr 2026US 12,605,773 B2Sumitomo Electric Hardmetal Corp.
- Drill17 Mar 2026US 12,576,452 B2Mitsubishi Materials Corporation
- Non planar cutting element with non planar interface design and tools incorporating such elements30 Sep 2025US 12,428,914 B2Schlumberger Technology Corporation
- Hard-film-coated drill29 Apr 2025US 12,285,809 B2Nachi-Fujikoshi Corp.
- Drill23 Jul 2024US 12,042,871 B2Tungaloy Corporation
- Cutting element with non-planar interface design and tools incorporating such elements22 Jan 2026US 2026/0022613 A1Schlumberger Technology Corporation
- Rotary cutting tool, such as a drill or a reamer17 Jul 2025US 2025/0229345 A1Desgranges Outils Coupants
- Drill and cutting method19 Sep 2024US 2024/0307979 A1Sumitomo Electric Hardmetal Corp.
- Drilling tool30 May 2024US 2024/0173779 A1Tungaloy Corporation
- Drill point30 Nov 2023US 2023/0381870 A1Walter AG
Most cited
By later US patents
- Surface decarburization of a drill bit51US 5,609,447 ARogers Tool Works, Inc. · 1997
- Surface decarburization of a drill bit having a refined primary cutting edge36US 5,628,837 ARogers Tool Works, Inc. · 1997
- Method for preparing a cutting edge on an end mill15US 6,105,467 A2000
- Solid drill bit for machine tools15US 7,201,542 B2Komet Praezisionswerkzeuge Robert Breuning GmbH · 2007
- Cutting tip having rounded main cutting edge and sharp side cutting edges9US 6,321,618 B1Sandvik AB · 2001