B23B 2251/402
With increasing depth in a direction towards the shank from the tool
Official title: with increasing depth in a direction towards the shank from the tool tip
B23B2251/402 (With increasing depth in a direction towards the shank from the tool) appears on 15 US grants and 18 published applications in this corpus.
Search patents in B23B- Granted patents
- 15
- Published applications
- 18
- Assignees
- 16
- Inventors
- 42
- Latest grant
- 10 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 3 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 2 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 0 | 0 |
| 2016 | 3 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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- Step drill27 Mar 2025US 2025/0100056 A1Shajeng Hardware Co., Ltd.
- Cutting tool6 Oct 2022US 2022/0314341 A1Tungaloy Corporation
- Rotary cutting tool having chip space in proportion to feed-per-tooth28 Oct 2021US 2021/0331257 A1Yg-1 Co., Ltd.
- Drill and method of manufacturing machined product using the same16 Nov 2017US 2017/0326652 A1KYOCERA Corporation
- Twist drill for metal machining2 Jun 2016US 2016/0151842 A1Seco Tools AB
Most cited
By later US patents
- Twist drill with a pilot tip38US 7,520,703 B2Black & Decker Inc. · 2009
- Twist drill35US 5,350,261 AMitsubishi Materials Corporation · 1994
- Twist drill32US 5,678,960 AKennametal Hertel AG · 1997
- Twist drill22US 7,101,125 B2Kennametal Inc. · 2006
- Rotatable drilling tool as well as basic body therefor15US 9,248,512 B2Sandvik Intellectual Property AB · 2016