B23B 2251/182
Web thinning
B23B2251/182 (Web thinning) appears on 26 US grants and 31 published applications in this corpus.
Search patents in B23B- Granted patents
- 26
- Published applications
- 31
- Assignees
- 23
- Inventors
- 76
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 2 |
| 2022 | 0 | 2 |
| 2023 | 0 | 3 |
| 2024 | 2 | 9 |
| 2025 | 2 | 4 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Drill8 Sep 2026US 12,728,467 B2Osg Corporation
- Drill9 Jun 2026US 12,649,191 B2Osg Corporation
- Drill20 Jan 2026US 12,528,128 B2Sumitomo Electric Hardmetal Corp.
- 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.
- Drill18 Mar 2025US 12,251,765 B2Sumitomo Electric Hardmetal Corp.
Most cited
By later US patents
- Drill bit structure76US 4,728,231 ASumitomo Electric Industries, Ltd. · 1988
- Self-centering drill bit with pilot tip, and process50US 6,050,754 ABlack & Decker Inc. · 2000
- Self-centering drill bit with pilot tip, and process50US 6,190,097 B1Black & Decker Inc. · 2001
- Cemented carbide drill bit45US 4,583,888 ASumitomo Electric Industries, Ltd. · 1986
- Twist drill42US 5,230,593 AMitsubishi Kinzoku Kabushiki Kaisha · 1993