B23B 2224/04
Aluminium oxide
B23B2224/04 (Aluminium oxide) appears on 129 US grants and 146 published applications in this corpus.
Search patents in B23B- Granted patents
- 129
- Published applications
- 146
- Assignees
- 38
- Inventors
- 238
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 1 |
| 2004 | 1 | 3 |
| 2005 | 0 | 3 |
| 2006 | 1 | 3 |
| 2007 | 1 | 7 |
| 2008 | 5 | 5 |
| 2009 | 1 | 5 |
| 2010 | 6 | 6 |
| 2011 | 7 | 5 |
| 2012 | 4 | 3 |
| 2013 | 1 | 1 |
| 2014 | 2 | 2 |
| 2015 | 4 | 4 |
| 2016 | 2 | 6 |
| 2017 | 7 | 21 |
| 2018 | 10 | 6 |
| 2019 | 11 | 15 |
| 2020 | 9 | 9 |
| 2021 | 12 | 7 |
| 2022 | 9 | 12 |
| 2023 | 6 | 7 |
| 2024 | 5 | 6 |
| 2025 | 12 | 4 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Cutting tools23 Jun 2026US 12,661,717 B2Sumitomo Electric Hardmetal Corp.
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- Cutting tool30 Dec 2025US 12,508,655 B2AB Sandvik Coromant
- Coated tool28 Oct 2025US 12,454,012 B2KYOCERA Corporation
- Coated cutting tool23 Jul 2026US 2026/0208271 A1Walter AG
- Cutting tool2 Jul 2026US 2026/0183846 A1Sumitomo Electric Hardmetal Corp.
- Cutting tools having multilayer coatings30 Apr 2026US 2026/0115806 A1
- Surface coated cutting tools23 Apr 2026US 2026/0108952 A1
- Coated cutting tool1 Jan 2026US 2026/0001142 A1Tungaloy Corporation
Most cited
By later US patents
- Tool for rotary chip removal, a tool tip and a method for manufacturing a tool tip47US 6,551,035 B1Seco Tools AB · 2003
- Coated PCBN cutting inserts46US 6,599,062 B1Kennametal PC Inc. · 2003
- Ceramic instrument44US 7,717,710 B2Gebr. Brasseler GmbH & Co. KG · 2010
- Coated hard alloy tool41US 5,597,272 ASumitomo Electric Industries, Ltd. · 1997
- Coated hard alloy tool37US 5,776,588 ASumitomo Electric Industries, Ltd. · 1998