| Patents for B63H 1 - Propulsive elements directly acting on water (4,187) |
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| 07/01/2004 | US20040126242 Boat propeller and guard device |
| 06/30/2004 | EP1433238A1 Method for operating a wind park |
| 06/30/2004 | EP1203160B1 Ribbon drive propulsion system and method |
| 06/30/2004 | CN1508042A Marine hydraulic bent-hinge propulsion module |
| 06/29/2004 | US6755706 Structure of fin shaped soft paddle |
| 06/24/2004 | DE10229503A1 Power transmission for marine vessel has sprung rotary fin used to replace propeller screw |
| 06/17/2004 | WO2004050474A1 Drive for ailerons actuated by muscular force |
| 06/17/2004 | US20040115060 Wind turbine rotor blade comprising one or more means secured to the blade for changing the profile thereof depending on the atmospheric temperature |
| 06/15/2004 | US6749401 Hydrodynamically and aerodynamically optimized leading edge structure for propellers, wings, and airfoils |
| 06/08/2004 | US6746287 Underwater propelling apparatus which stably carries out a propelling operation and a steering operation |
| 06/03/2004 | US20040104309 Method and system for regulating external fluid flow over an object's surface, and particularly a wing and diffuser |
| 06/03/2004 | DE10252406A1 Marine vessel drive uses rudder moved laterally on vertical axis in duct to cause water flow to rear |
| 06/01/2004 | US6743064 High-speed paddle wheel catamaran |
| 05/26/2004 | CN1498819A Ship propeller in open/close typed fin keel |
| 05/18/2004 | US6736600 Rotor with a split rotor blade |
| 05/13/2004 | US20040091359 Blade and wing configuration |
| 05/13/2004 | US20040090195 Efficient control, monitoring and energy devices for vehicles such as watercraft |
| 05/13/2004 | DE10250974A1 Marine drive with eccentric transmission has paddles mounted on the planetary gears describing an eccentric cycle with the paddle attitude constant |
| 05/12/2004 | CN1496317A Marine propulsion system |
| 05/12/2004 | CN1149162C Ship with propulsion system |
| 05/06/2004 | WO2002055381A9 Personal watercraft |
| 05/06/2004 | US20040087224 Waterpillar |
| 05/06/2004 | US20040087223 Vibrational water mover (V.W.M.) |
| 05/06/2004 | EP1414698A1 Cavitation alleviation and line cutting device |
| 04/29/2004 | US20040082231 Small watercraft with fin and sail |
| 04/28/2004 | EP1115613B1 Load-bearing structure with reduced tip vortex |
| 04/27/2004 | US6725797 Method and apparatus for propelling a surface ship through water |
| 04/22/2004 | DE10246886A1 Marine propeller screw blade has flow edge as wing or nozzle normal to screw blade right across blade for added hydrodynamicity. |
| 04/21/2004 | EP1409335A1 Reduction of propeller-induced pressure fluctuations by introduction of air |
| 04/14/2004 | EP1406811A2 Powered boat hull |
| 04/14/2004 | EP1187760B1 Propelling and driving system for boats |
| 04/14/2004 | EP1177129B1 Course-stable, fast, seagoing ship comprising a hull that is optimized for a rudder propeller |
| 04/14/2004 | EP1023220A4 Method and apparatus for aeration using flexible blade impeller |
| 04/13/2004 | US6719599 High efficiency hydrofoil and swim fin designs |
| 04/01/2004 | WO2004026681A1 Multi-mode propulsion glide submarine |
| 04/01/2004 | WO2004026679A1 Variable resistance water skis with variable resistance paddles |
| 03/18/2004 | US20040050064 Method and system for regulating internal fluid flow within an enclosed or semi-enclosed environment |
| 03/17/2004 | EP1280694B1 Hull and propeller arrangement |
| 03/17/2004 | EP1274622B1 Water craft propelled by a double-flipper device actuated by a pedal mechanism |
| 03/16/2004 | US6705907 Drive means in a boat |
| 03/16/2004 | CA2104400C Propeller with shrouding ring attached to blades |
| 03/11/2004 | WO2004020280A1 Propeller, propeller propulsion system and vessel comprising propulsion system |
| 03/11/2004 | WO2004020279A1 Propeller, propeller propulsion system and vessel comprising propulsion system |
| 03/11/2004 | WO2004020278A1 Propeller, propeller propulsion system and vessel comprising propulsion system |
| 03/11/2004 | US20040048528 High-speed paddle wheel catamaran |
| 03/09/2004 | US6702552 Impeller having blade(s) conforming to the golden section of a logarithmic curve |
| 03/04/2004 | US20040043677 Underwater propelling apparatus which stably carries out a propelling operation and a steering operation |
| 03/04/2004 | DE20318605U1 Watersports board, has fin propulsion operated by rocker connected to centreboard and provided with handlebars |
| 03/03/2004 | EP1394039A1 Propeller |
| 03/03/2004 | EP1394037A1 Twin rudder system for large ship |
| 03/03/2004 | CN2605197Y Screw propeller |
| 03/02/2004 | US6699016 Boat propeller |
| 02/19/2004 | US20040033142 Ribbon drive pumping apparatus and method with added fluid |
| 02/17/2004 | US6692319 Thruster for submarine vessels |
| 02/17/2004 | US6692317 Water craft propelled by a double-flipper device actuated by a pedal mechanism |
| 02/12/2004 | DE20314672U1 Boat has a central hull with outriggers left and right which allow the hull to incline to a limited degree |
| 02/12/2004 | DE10234519A1 Drive system for man-powered or motor-powered boat has one or more push panels hinged on sliding axle within a channel frame |
| 02/12/2004 | DE10232457A1 Ship's screw drive with screw propeller and rudder blade, on hull, has triangular right-angled openings,, vertical pipes, mixer profile with two arms |
| 02/11/2004 | CN1473737A Screw surface oar |
| 02/10/2004 | US6688849 Impeller and propeller |
| 02/05/2004 | WO2004011330A1 Hydrodynamically and aerodynamically optimized leading edge structure for propellers, wings, and airfoils |
| 02/05/2004 | US20040022635 Hydrodynamically and aerodynamically optimized leading edge structure for propellers, wings, and airfoils |
| 02/03/2004 | US6685516 Azimuth propeller device |
| 02/03/2004 | US6685432 Hub assembly for marine propeller |
| 01/27/2004 | US6682377 Propulsion apparatus for a vessel |
| 01/26/2004 | CA2435969A1 Personal watercraft |
| 01/22/2004 | US20040014376 Boat propulsion system |
| 01/15/2004 | US20040009718 Impeller for marine propulsion device |
| 01/14/2004 | EP0999975B1 Novel watercraft |
| 01/08/2004 | WO2004002817A1 Rotor assembly |
| 01/08/2004 | US20040005221 Propeller |
| 01/08/2004 | DE10226713A1 Windkraftanlage Wind Turbine |
| 01/07/2004 | CN2597329Y Circulation oar type on-water propeller |
| 12/31/2003 | WO2004001267A2 Method and system for regulating external and internal fluid flow |
| 12/31/2003 | WO2004000640A1 A pulling marine propeller |
| 12/31/2003 | CN2595660Y Integrate cast steel screw propeller |
| 12/24/2003 | WO2003106839A1 Wind power plant |
| 12/24/2003 | CN1462710A Propeller |
| 12/18/2003 | DE20315369U1 Propeller with a casing ring for an air or water vehicle has electromagnetic drive with stator to produce alternating electromagnetic fields |
| 12/17/2003 | EP1053173B1 Propulsion system |
| 12/16/2003 | CA2212810C Propeller |
| 12/09/2003 | US6659818 Shock-absorbing propeller assembly |
| 12/09/2003 | US6659815 Efficient motors and controls for watercraft |
| 12/04/2003 | WO2003099652A1 Lift generating and propelling device |
| 12/04/2003 | US20030223874 Impeller and propeller |
| 11/25/2003 | CA2286705C Improved fluid displacing blade |
| 11/20/2003 | US20030216091 Small watercraft with fin and jig |
| 11/20/2003 | DE20313307U1 Rotor with shaft and rotor blades has surfaces at right angles to incoming or outgoing force which are cut at an angle to the shaft |
| 11/13/2003 | WO2003093101A1 Propeller |
| 11/13/2003 | WO2003092843A1 Fish-shaped underwater navigating body, control system thereof, and aquarium |
| 11/12/2003 | CN2585811Y Fin open/close marine propeller |
| 11/11/2003 | US6645016 Merchant navy vessel comprising a hull that is provided for accommodating goods and/or people |
| 11/11/2003 | US6644926 Vane structure for a propeller |
| 11/06/2003 | WO2003091094A1 Watercraft board for playing in the water |
| 11/05/2003 | EP1189807B1 Merchant navy vessel comprising a hull that is provided for accommodating goods and/or people |
| 10/29/2003 | EP1355822A1 Marine propulsion system |
| 10/23/2003 | WO2003087572A1 A blade for a wind turbine and a method of assembling laminated profiles for a blade |
| 10/23/2003 | WO2003086855A1 Movement conversion device |
| 10/16/2003 | US20030194922 Rim-driven propulsion pod arrangement |
| 10/09/2003 | WO2003082669A1 Thruster for submarine vessels |