B63H 2001/283
Propeller hub caps with fins having a pitch different from pitch of
Official title: {Propeller hub caps with fins having a pitch different from pitch of propeller blades, or a helix hand opposed to the propellers' helix hand}
B63H2001/283 (Propeller hub caps with fins having a pitch different from pitch of) appears on 12 US grants and 14 published applications in this corpus.
Search patents in B63H- Granted patents
- 12
- Published applications
- 14
- Assignees
- 8
- Inventors
- 23
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 2 | 2 |
| 2017 | 1 | 1 |
| 2018 | 2 | 3 |
| 2019 | 1 | 2 |
| 2020 | 3 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year.
Recent patents
- End cap for guiding an exhaust gas flow of a boat engine, propeller system for a boat engine, boat engine, and use of an end cap and method for guiding an exhaust gas flow of a boat engine2 Dec 2025US 12,486,013 B2Neuro-Net GmbH
- Surf thrust system18 Jun 2024US 12,012,182 B2
- Hybrid propulsor for watercraft29 Nov 2022US 11,511,837 B2
- Unidirectional torque boosting propeller14 Jul 2020US 10,710,687 B2
- Apparatus and system for propeller blade aft retention7 Jul 2020US 10,703,452 B2General Electric Company
- End cap for guiding an exhaust gas flow of a boat engine, propeller system for a boat engine, boat engine, and use of an end cap and method for guiding an exhaust gas flow of a boat engine19 Oct 2023US 2023/0331363 A1Neuro-Net GmbH
- Surf Thrust System31 Mar 2022US 2022/0097813 A1Go Surf Assist, LLC
- Hybrid Propulsor for Watercraft18 Nov 2021US 2021/0354801 A1
- Unidirectional torque boosting propeller4 Apr 2019US 2019/0100293 A1
- Retractable vertical-axis propeller device28 Feb 2019US 2019/0061893 A1
Most cited
By later US patents
- Arrangement for multi screw vessels comprising external propeller shafts as well as method for producing such an arrangement14US 9,789,943 B2Becker Marine Systems GmbH & Co.KG · 2017
- Barrel extension assemblies and methods for marine propellers5US 9,914,515 B12018
- Propulsion device for ship1US 10,040,528 B2Samsung Heavy Ind.Co., Ltd. · 2018
- Hybrid propulsor for watercraft1US 11,511,837 B22022
- Propeller arrangement, in particular for watercraft1US 9,328,613 B2Becker Marine Systems GmbH & Co.KG · 2016