B23B 2228/44
Materials having grain size less than 1 micrometre
Official title: Materials having grain size less than 1 micrometre, e.g. nanocrystalline
B23B2228/44 (Materials having grain size less than 1 micrometre) appears on 13 US grants and 23 published applications in this corpus.
Search patents in B23B- Granted patents
- 13
- Published applications
- 23
- Assignees
- 18
- Inventors
- 47
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 2 |
| 2017 | 0 | 3 |
| 2018 | 3 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 2 | 4 |
| 2025 | 1 | 1 |
| 2026 | 1 | 2 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Cutting tools23 Jun 2026US 12,661,717 B2Sumitomo Electric Hardmetal Corp.
- Tool with wear detection2 Dec 2025US 12,485,491 B2Guehring KG
- Cutting tools having microstructured and nanostructured refractory surfaces7 May 2024US 11,975,409 B2Kennametal Inc.
- Nanostructured metallic layer on carbide for improved coating adhesion5 Mar 2024US 11,919,091 B2P&S Global Holdings LLC
- Cutting tools having microstructured and nanostructured refractory surfaces14 Jun 2022US 11,358,241 B2Kennametal Inc.
- Coated cutting tool23 Jul 2026US 2026/0208271 A1Walter AG
- Surface coated cutting tools23 Apr 2026US 2026/0108952 A1
- Coated cutting tool13 Nov 2025US 2025/0345860 A1Walter AG
- Coated cutting tool18 Jul 2024US 2024/0238874 A1AB Sandvik Coromant
- Cutting tools having microstructured and nanostructured refractory surfaces18 Jul 2024US 2024/0238907 A1Kennametal Inc.
Most cited
By later US patents
- Tool and method for machining fiber-reinforced materials12US 10,099,297 B2CemeCon AG · 2018
- Nanowire and microwire fabrication technique and product2US 8,236,386 B2WiSys Technology Foundation, Inc. · 2012
- Coated tool1US 10,118,229 B2KYOCERA Corporation · 2018
- Sintered compact and cutting tool1US 9,988,314 B2Sumitomo Electric Hardmetal Corp. · 2018