B23C 2224/04
Aluminium oxide
B23C2224/04 (Aluminium oxide) appears on 30 US grants and 36 published applications in this corpus.
Search patents in B23C- Granted patents
- 30
- Published applications
- 36
- Assignees
- 16
- Inventors
- 75
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 3 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 6 |
| 2018 | 4 | 3 |
| 2019 | 3 | 1 |
| 2020 | 1 | 4 |
| 2021 | 4 | 3 |
| 2022 | 3 | 4 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 3 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cutting tool5 May 2026US 12,617,024 B2Sumitomo Electric Hardmetal Corp.
- Coated tool and cutting tool including the same1 Jul 2025US 12,343,802 B2KYOCERA Corporation
- Cutting tool11 Feb 2025US 12,220,747 B2Sumitomo Electric Hardmetal Corp.
- Coated tool and cutting tool including the same14 Jan 2025US 12,194,543 B2KYOCERA Corporation
- Coated tool and cutting tool including same3 Jan 2023US 11,541,468 B2KYOCERA Corporation
- Coated cutting tool23 Jul 2026US 2026/0208271 A1Walter AG
- Cutting tool3 Aug 2023US 2023/0241691 A1Sumitomo Electric Hardmetal Corp.
- Coated tool and cutting tool including the same18 Aug 2022US 2022/0258253 A1KYOCERA Corporation
- Coated tool and cutting tool including the same11 Aug 2022US 2022/0250161 A1KYOCERA Corporation
- Cutting tool23 Jun 2022US 2022/0193787 A1Sumitomo Electric Hardmetal Corp.
Most cited
By later US patents
- Coated hard alloy tool41US 5,597,272 ASumitomo Electric Industries, Ltd. · 1997
- Coated hard alloy tool37US 5,776,588 ASumitomo Electric Industries, Ltd. · 1998
- Cutting tool for rough and finish milling33US 7,125,205 B2Kennametal Inc. · 2006
- Method for machining composites16US 5,816,755 ASandvik AB · 1998
- Solid cemented carbide ball nose end mill12US 6,082,935 ANachi-Fujikoshi Corp. · 2000