B63H 2011/085
Having counter-rotating impellers
Official title: {having counter-rotating impellers}
B63H2011/085 (Having counter-rotating impellers) appears on 15 US grants and 9 published applications in this corpus.
Search patents in B63H- Granted patents
- 15
- Published applications
- 9
- Assignees
- 9
- Inventors
- 16
- Latest grant
- 15 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 2 |
| 2021 | 2 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Propulsion device with outboard waterjet for marine vehicles15 Oct 2024US 12,116,096 B2Sealence S.P.A.
- Recuperative jet drive20 Dec 2022US 11,530,020 B2
- Hull propulsion mechanism3 Aug 2021US 11,077,927 B2
- Electrical underwater jet motor with multiple stator for sea vehicles27 Apr 2021US 10,988,223 B2Misal Tasarim Danismanlik Makina Medikal Ithalat Ihracat San. Ve Tic. Ltd. Sti.
- Driving device for a watercraft11 Feb 2020US 10,556,655 B2Marine Jet Power AB
- Propulsion device with outboard waterjet for marine vehicles7 Oct 2021US 2021/0309334 A1Sealence S.P.A.
- Hull propulsion mechanism10 Jun 2021US 2021/0171176 A1
- Recuperative jet drive21 May 2020US 2020/0156750 A1
- Electrical underwater jet motor with multiple stator for sea vehicles2 Jan 2020US 2020/0001960 A1Misal Tasarim Danismanlik Makina Medikal Ithalat Ihracat San. Ve Tic. Ltd. Sti.
- Driving device for a watercraft9 May 2019US 2019/0135397 A1Marine Jet Power AB
Most cited
By later US patents
- Dual propeller shock resistant submersible propulsor unit33US 5,185,545 AWestinghouse Electric Corp. · 1993
- Hydraulic jet propulsion apparatus for boats19US 6,663,448 B1Contra Jet WJPS NZ Ltd. · 2003
- Marine propulsion pump with two counter rotating impellers16US 5,480,330 AOutboard Marine Corporation · 1996
- Water jet propulsion unit with counter-rotating impellers10US 6,273,768 B1Bombardier Motor Corporation of America · 2001
- Water jet propulsion unit for use in water borne craft6US 6,422,904 B12002