B23D 2277/20
Number of cutting edges
B23D2277/20 (Number of cutting edges) appears on 54 US grants and 35 published applications in this corpus.
Search patents in B23D- Granted patents
- 54
- Published applications
- 35
- Assignees
- 36
- Inventors
- 82
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 3 |
| 2004 | 0 | 0 |
| 2005 | 2 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 3 |
| 2011 | 1 | 2 |
| 2012 | 2 | 5 |
| 2013 | 2 | 1 |
| 2014 | 4 | 0 |
| 2015 | 3 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 2 |
| 2018 | 2 | 3 |
| 2019 | 1 | 0 |
| 2020 | 3 | 2 |
| 2021 | 1 | 1 |
| 2022 | 0 | 3 |
| 2023 | 1 | 1 |
| 2024 | 0 | 3 |
| 2025 | 2 | 1 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Reamer for machining of through-holes1 Sep 2026US 12,722,219 B2Kennametal Inc.
- Replaceable cutting head, tool holder and morse taper rotary cutting tool having fastening member26 May 2026US 12,636,712 B2Iscar, Ltd.
- Rotary tool and method for manufacturing machined product7 Apr 2026US 12,594,611 B2KYOCERA Corporation
- Reamer with front gash design23 Sep 2025US 12,420,346 B2Kennametal Inc.
- Reamer4 Mar 2025US 12,240,049 B2Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
- Reamer with front gash design4 Dec 2025US 2025/0367742 A1Kennametal Inc.
- Cutting insert and tool for machining23 May 2024US 2024/0165712 A1Hartmetall-Werkzeugfabrik Paul Horn GmbH
- Replaceable cutting head, tool holder and morse taper rotary cutting tool having fastening member2 May 2024US 2024/0139829 A1Iscar, Ltd.
- Reamer for machining of through-holes14 Mar 2024US 2024/0082933 A1Kennametal Inc.
- Reamer with front gash design28 Sep 2023US 2023/0302556 A1Kennametal Inc.
Most cited
By later US patents
- Tool for the precision machining of surfaces44US 6,913,428 B2Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG · 2005
- Reamer26US 5,238,335 AToshiba Tungaloy Co., Ltd. · 1993
- Friction and vertical cutting tool26US 6,254,319 B12001
- Reamer with a flat rectangular reversible cutting bit25US 4,425,063 A1984
- Rotary cutting tool20US 4,850,757 AGTE Valenite Corporation · 1989