B25D 2222/51
Hard metals
Official title: Hard metals, e.g. tungsten carbide
B25D2222/51 (Hard metals) appears on 13 US grants and 17 published applications in this corpus.
Search patents in B25D- Granted patents
- 13
- Published applications
- 17
- Assignees
- 14
- Inventors
- 35
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 0 | 0 |
| 2020 | 2 | 3 |
| 2021 | 1 | 2 |
| 2022 | 0 | 5 |
| 2023 | 5 | 0 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
| 2026 | 1 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Insert tool and method for producing an insert tool28 Jul 2026US 12,691,561 B2Robert Bosch GmbH
- Chisel and method for producing a chisel8 Jul 2025US 12,350,803 B2Robert Bosch GmbH
- Method for producing silicon fragments24 Dec 2024US 12,172,170 B2Wacker Chemie AG
- Hammer with hardened textured striking face5 Dec 2023US 11,833,651 B2Milwaukee Electric Tool Corporation
- Power tool having rotary hammer mechanism24 Oct 2023US 11,794,325 B2Makita Corporation
- Chisel with a Long Service Life and Method for Producing Such a Chisel2 Jul 2026US 2026/0183918 A1Hilti Aktiengesellschaft
- Method for producing silicon fragments6 Oct 2022US 2022/0314228 A1Wacker Chemie AG
- Power tool having rotary hammer mechanism8 Sep 2022US 2022/0281092 A1Makita Corporation
- Application Tool and Method for Producing an Application Tool31 Mar 2022US 2022/0097220 A1Robert Bosch GmbH
- Scoring knife17 Mar 2022US 2022/0080606 A1Techtronic Cordless GP
Most cited
By later US patents
- Hammer for breaking polycrystalline silicon9US 7,950,308 B2Mitsubishi Materials Corporation · 2011
- Scoring knife3US 10,710,256 B2Tti (Macao Commercial Offshore) Limited · 2020
- Formation breaking assembly2US 7,503,628 B22009
- Power tool having rotary hammer mechanism1US 11,794,325 B2Makita Corporation · 2023