B23B 27/04
Cutting-off tools
Official title: Cutting-off tools (B23B27/08 takes precedence {; toolholders for cutting-off inserts B23B29/043})
B23B27/04 (Cutting-off tools) appears on 405 US grants and 303 published applications in this corpus.
Search patents in B23B- Granted patents
- 405
- Published applications
- 303
- Assignees
- 103
- Inventors
- 415
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 7 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 8 | 0 |
| 1991 | 10 | 0 |
| 1992 | 12 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 19 | 0 |
| 1999 | 9 | 0 |
| 2000 | 7 | 0 |
| 2001 | 14 | 2 |
| 2002 | 5 | 11 |
| 2003 | 5 | 7 |
| 2004 | 14 | 8 |
| 2005 | 3 | 9 |
| 2006 | 8 | 11 |
| 2007 | 7 | 5 |
| 2008 | 8 | 7 |
| 2009 | 6 | 9 |
| 2010 | 5 | 13 |
| 2011 | 9 | 6 |
| 2012 | 5 | 9 |
| 2013 | 9 | 20 |
| 2014 | 18 | 13 |
| 2015 | 13 | 15 |
| 2016 | 16 | 15 |
| 2017 | 12 | 15 |
| 2018 | 17 | 11 |
| 2019 | 15 | 25 |
| 2020 | 18 | 9 |
| 2021 | 8 | 9 |
| 2022 | 7 | 25 |
| 2023 | 12 | 14 |
| 2024 | 18 | 15 |
| 2025 | 6 | 15 |
| 2026 | 11 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Holder, cutting tool, and method for manufacturing machined product25 Aug 2026US 12,715,045 B2KYOCERA Corporation
- Turning tool11 Aug 2026US 12,703,025 B2Iscar, Ltd.
- Cutting head having rotationally asymmetric coupling pin, tool shank and cutting tool9 Jun 2026US 12,649,188 B2Iscar, Ltd.
- Cutting tool and indexable cutting insert having a mounting cut-out therefor26 May 2026US 12,636,709 B2Iscar, Ltd.
- Y-axis parting adaptor for a cutting tool5 May 2026US 12,617,021 B2Iscar, Ltd.
- Cutting insert20 Aug 2026US 2026/0241460 A1KYOCERA Corporation
- Cutting insert for cutting tool as well as cutting tool and methods for producing cutting inserts20 Aug 2026US 2026/0241468 A1
- Cutting tool18 Jun 2026US 2026/0166631 A1Sumitomo Electric Industries, Ltd.
- Cutting tool1 Jan 2026US 2026/0001140 A1Tungaloy Corporation
- Cutting tool1 Jan 2026US 2026/0001144 A1Tungaloy Corporation
Most cited
By later US patents
- Metal cutting tool72US 5,346,335 AIscar, Ltd. · 1994
- Metal cutting tool68US 5,439,327 AIscar, Ltd. · 1995
- Chipping tool with clamping cutter63US 4,580,930 AFirma Zinner GmbH · 1986
- Cutting insert for deep grooving57US 4,340,325 AGeneral Electric Company · 1982
- Cutting insert49US 4,778,311 ASeco Tools AB · 1988