B23B 2251/28
Arrangement of teeth
B23B2251/28 (Arrangement of teeth) appears on 57 US grants and 62 published applications in this corpus.
Search patents in B23B- Granted patents
- 57
- Published applications
- 62
- Assignees
- 42
- Inventors
- 121
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 2 |
| 2002 | 2 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 3 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 2 | 1 |
| 2010 | 0 | 5 |
| 2011 | 0 | 2 |
| 2012 | 2 | 5 |
| 2013 | 1 | 1 |
| 2014 | 4 | 3 |
| 2015 | 3 | 2 |
| 2016 | 3 | 3 |
| 2017 | 5 | 3 |
| 2018 | 2 | 8 |
| 2019 | 9 | 7 |
| 2020 | 3 | 2 |
| 2021 | 3 | 3 |
| 2022 | 3 | 1 |
| 2023 | 1 | 1 |
| 2024 | 1 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multi-step drill with asymmetric step profiles1 Sep 2026US 12,722,211 B2
- Twist drill bit having a cutting tip with a stepped structure25 Nov 2025US 12,479,036 B2Guehring KG
- Non planar cutting element with non planar interface design and tools incorporating such elements30 Sep 2025US 12,428,914 B2Schlumberger Technology Corporation
- Carbide tip hole saw21 May 2024US 11,986,890 B2The M. K. Morse Company
- Rotary cutting tool having chip space in proportion to feed-per-tooth17 Jan 2023US 11,554,426 B2Yg-1 Co., Ltd.
- Multi-step drill with asymmetric step profiles12 Mar 2026US 2026/0070132 A1
- Cutting element with non-planar interface design and tools incorporating such elements22 Jan 2026US 2026/0022613 A1Schlumberger Technology Corporation
- Multi-step drill with asymmetric step profiles21 Aug 2025US 2025/0262676 A1
- Drill Blade for Drilling Hard Materials and Drill Bit12 Sep 2024US 2024/0300033 A1Robert Bosch GmbH
- Drill bit23 May 2024US 2024/0165718 A1
Most cited
By later US patents