B63H 2023/065
Having means for differentially varying the speed of the main transmitting elements
Official title: {having means for differentially varying the speed of the main transmitting elements, e.g. of the drive shafts}
B63H2023/065 (Having means for differentially varying the speed of the main transmitting elements) appears on 8 US grants and 8 published applications in this corpus.
Search patents in B63H- Granted patents
- 8
- Published applications
- 8
- Assignees
- 5
- Inventors
- 9
- Latest grant
- 27 Aug 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
By publication year.
Recent patents
- Contra-rotating propulsor for marine propulsion27 Aug 2019US 10,392,089 B2Michigan Marine Propulsion Systems, LLC
- Contra-rotating propulsor for marine propulsion27 Sep 2016US 9,452,815 B2Michigan Marine Propulsion Systems, LLC
- Waterjet propulsion system and method for a marine vehicle11 Mar 2014US 8,668,533 B2Twin Disc, Incorporated
- Marine power splitting gearbox29 May 2012US 8,187,046 B2Twin Disc, Incorporated
- Power transmission device15 Aug 2006US 7,090,611 B2
- Contra-rotating propulsor for marine propulsion18 May 2017US 2017/0137100 A1Michigan Marine Propulsion Systems, LLC
- Contra-rotating propulsor for marine propulsion11 Dec 2014US 2014/0364265 A1Michigan Marine Propulsion Systems, LLC
- Waterjet Propulsion System and Method for a Marine Vehicle10 Nov 2011US 2011/0275254 A1Twin Disc, Incorporated
- Marine power splitting gearbox9 Dec 2010US 2010/0311291 A1Twin Disc, Incorporated
- Power transmission device6 Apr 2006US 2006/0073934 A1
Most cited
By later US patents
- Contra-rotating propulsor for marine propulsion19US 10,392,089 B2Michigan Marine Propulsion Systems, LLC · 2019
- Marine propulsion apparatus with dual driveshafts extending from a forward end of an engine17US 6,361,387 B1Brunswick Corporation · 2002
- Marine power splitting gearbox4US 8,187,046 B2Twin Disc, Incorporated · 2012
- Water intake and transmission system1US 6,626,713 B2Dual Drive Systems, Inc. · 2003
- Water intake and transmission system1US 7,040,939 B2Dual Drive Systems, Inc. · 2006