B23C 2210/203
Four
Official title: four
B23C2210/203 (Four) appears on 54 US grants and 60 published applications in this corpus.
Search patents in B23C- Granted patents
- 54
- Published applications
- 60
- Assignees
- 45
- Inventors
- 117
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 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 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 2 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 1 |
| 2007 | 3 | 5 |
| 2008 | 2 | 2 |
| 2009 | 1 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 2 |
| 2012 | 0 | 5 |
| 2013 | 4 | 3 |
| 2014 | 4 | 3 |
| 2015 | 2 | 3 |
| 2016 | 3 | 4 |
| 2017 | 1 | 4 |
| 2018 | 3 | 5 |
| 2019 | 6 | 5 |
| 2020 | 5 | 3 |
| 2021 | 2 | 4 |
| 2022 | 2 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Silicon nitride ceramic tool comprising diamond film and method of preparing the same5 May 2026US 12,617,023 B2Guangdong University of Technology
- End mill8 Nov 2022US 11,491,559 B2Kawasaki Jukogyo Kabushiki Kaisha
- Rotary cutting head having cutting edges extending past key actuating portion5 Jul 2022US 11,376,676 B2Iscar, Ltd.
- Mirror finishing method and mirror finishing tool13 Jul 2021US 11,059,110 B2Fanuc Corporation
- Single-sided four-way indexable positive cutting insert and insert mill therefor2 Feb 2021US 10,906,107 B2Iscar, Ltd.
- Micro form end mill15 Feb 2024US 2024/0051043 A1ZECHA Hartmetall-Werkzeugfabrikation GmbH
- Rotary cutting head having cutting edges extending past key actuating portion13 Jan 2022US 2022/0009010 A1Iscar, Ltd.
- Helical Milling Tool with Forward-Backward Feeding25 Nov 2021US 2021/0362248 A1Dalian University of Technology
- Silicon nitride ceramic tool comprising diamond film and method of preparing the same5 Aug 2021US 2021/0237168 A1Guangdong University of Technology
- Blank for shaft milling cutter22 Apr 2021US 2021/0114150 A1Walter AG
Most cited
By later US patents
- Rotary milling cutter118US 4,285,618 A1981
- End-mill tool with multiple cutting edges43US 6,168,355 A2001
- End-mill tool with high and low helical flutes and related method for rough cutting and finishing a workpiece37US 6,179,528 B22001
- End-mill tool with high and low flutes and related method for rough cutting and finishing a workpiece30US 6,439,811 B12002
- End-mill tool with high and low helical flutes and related method for rough cutting and finishing a workpiece26US 6,007,276 A1999