B21D 53/647
Mower blades
Official title: {mower blades}
B21D53/647 (Mower blades) appears on 6 US grants and 8 published applications in this corpus.
Search patents in B21D- Granted patents
- 6
- Published applications
- 8
- Assignees
- 6
- Inventors
- 17
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2005 | 1 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Method of manufacturing a knife blade for a cutter knife and cutter knife28 Apr 2026US 12,610,882 B2Smf - Holding GmbH
- Cutting blade10 Jan 2023US 11,547,045 B2Tritana Intellectual Property Ltd.
- Cutting blade16 Nov 2021US 11,172,611 B2Tritana Intellectual Property Ltd.
- Shear beveling with serrations16 Aug 2016US 9,415,437 B2Fisher Barton Specialty Products, Inc.
- Chopping blade and counterblade for a chopping device and process for its production26 Nov 2013US 8,590,355 B2Rasspe Systemtechnik GmbH
- Method of manufacturing a knife blade for a cutter knife and cutter knife8 Dec 2022US 2022/0386524 A1Smf - Holding GmbH
- Cutting Blade for a Robotic Work Tool3 Feb 2022US 2022/0030766 A1Husqvarna AB
- Cutting blade25 Nov 2021US 2021/0360851 A1Tritana Intellectual Property Ltd.
- Cutting Blade19 Sep 2019US 2019/0281760 A1Tritana Intellectual Property Ltd.
- Shear Beveling with Serrations24 Dec 2015US 2015/0367393 A1Fisher Barton Specialty Products, Inc.
Most cited
By later US patents