B23B 2251/242
Increasing in a direction towards the shank from the tool tip
Official title: increasing in a direction towards the shank from the tool tip
B23B2251/242 (Increasing in a direction towards the shank from the tool tip) appears on 9 US grants and 12 published applications in this corpus.
Search patents in B23B- Granted patents
- 9
- Published applications
- 12
- Assignees
- 13
- Inventors
- 24
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 3 |
| 2018 | 2 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 2 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Step drill bit2 Jun 2026US 12,643,160 B2Milwaukee Electric Tool Corporation
- Step drill bit4 Jul 2023US 11,691,203 B2Milwaukee Electric Tool Corporation
- Step drill bit15 Mar 2022US 11,273,501 B2Milwaukee Electric Tool Corporation
- Deburring tool and method for deburring a hole5 Mar 2019US 10,220,449 B2Seco Tools AB
- Drilling tool, in particular reamer19 Jun 2018US 9,999,935 B2Audi AG
- Single-flute drill for printed wiring boards2 Jul 2026US 2026/0183849 A1Union Tool Co.
- A combination drill bit and bit driver device11 Jul 2024US 2024/0227038 A1Anchique Pty Ltd
- Multi-groove pagoda drill bit20 Jun 2024US 2024/0198436 A1Danyang Baike Tools Co., Ltd.
- Step drill bit28 Sep 2023US 2023/0302550 A1Milwaukee Electric Tool Corporation
- Step drill bit14 Oct 2021US 2021/0316375 A1Milwaukee Electric Tool Corporation
Most cited
By later US patents
- Twist drill bit for rock drilling7US 6,675,917 B2Hilti Aktiengesellschaft · 2004
- Step drill for wood5US 9,156,094 B2Irwin Industrial Tool Company · 2015
- Step drill bit3US 11,273,501 B2Milwaukee Electric Tool Corporation · 2022
- Drill and method of manufacturing drilled product2US 9,987,691 B2Honda Seimitsu Kogyo Kabushiki Kaisha · 2018
- Tool accommodating replaceable blade1US 9,555,483 B2iTool Equipment Holding LLC · 2017