B63H 2001/127
With helicoidal foils projecting from inside surfaces of rotating shrouds
Official title: {with helicoidal foils projecting from inside surfaces of rotating shrouds; Archimedean screws}
B63H2001/127 (With helicoidal foils projecting from inside surfaces of rotating shrouds) appears on 11 US grants and 8 published applications in this corpus.
Search patents in B63H- Granted patents
- 11
- Published applications
- 8
- Assignees
- 0
- Inventors
- 6
- Latest grant
- 3 May 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 3 | 3 |
| 2003 | 3 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year.
Recent patents
- Spiral drive mechanism, particularly for mechanical vehicles, land and marine machines3 May 2022US 11,319,006 B2
- Peripheral tunnels propeller with alternative balance27 Aug 2019US 10,392,087 B2
- Marine propulsion unit having a rotating cylinder driving an impeller20 Nov 2018US 10,131,413 B2
- Open core continuous helical fin marine drive system26 May 2015US 9,039,348 B1
- Ribbon drive pumping apparatus and method with added fluid28 Mar 2006US 7,018,170 B2
- Spiral drive mechanism, particularly for mechanical vehicles, land and marine machines6 Feb 2020US 2020/0039591 A1
- Marine Propulsion Unit Having A Rotating Cylinder Driving An Impeller8 Jun 2017US 2017/0158300 A1
- Peripheral Tunnels Propeller With Alternative Balance30 Mar 2017US 2017/0088244 A1
- Induced hollow spiral driving apparatus15 Oct 2015US 2015/0292504 A1
- Ribbon drive pumping apparatus and method with added fluid19 Feb 2004US 2004/0033142 A1
Most cited
By later US patents
- Ribbon drive power generation apparatus and method25US 6,357,997 B12002
- Ribbon drive power generation for variable flow conditions24US 6,626,638 B22003
- Ribbon drive pumping apparatus and method14US 6,357,998 B12002
- Ribbon drive pumping apparatus and method13US 6,592,335 B22003
- Ribbon drive propulsion system and method9US 6,431,926 B12002