| Patents for B63H 1 - Propulsive elements directly acting on water (4,187) |
|---|
| 09/08/1998 | US5803776 Partially immersible propeller |
| 09/02/1998 | EP0728099B1 Propulsion mechanism employing flapping foils |
| 09/01/1998 | US5800223 Marine propulsion device |
| 08/27/1998 | WO1998036966A1 Rotors with mistuned blades |
| 08/19/1998 | CN1190938A Fluid propulsion system for accelerating and directionally controlling a fluid |
| 08/11/1998 | US5791874 Marine propeller with adjustable cupping |
| 07/30/1998 | WO1998032652A1 Propulsion device for a vessel |
| 07/28/1998 | US5785564 Water craft with a hydrofoil-bladed wheel assembly |
| 07/15/1998 | CN1187398A Technique for integral casting of stainless steel propeller |
| 07/08/1998 | CN1186756A Water(air) pressurizing wheel |
| 07/07/1998 | CA2139204C Variable propeller for boat |
| 07/01/1998 | CN2285241Y Caterpillar propelling ship |
| 06/30/1998 | US5772481 Skeg construction for a marine propulsion unit |
| 06/30/1998 | CA2123947C Propeller for boat |
| 06/10/1998 | EP0724691B1 Surface of a body immersed in a fluid flow |
| 06/03/1998 | EP0844964A1 A marine oscillatory-motion propulsion system |
| 06/02/1998 | US5759073 For a watercraft |
| 05/22/1998 | WO1998021091A1 Flow form |
| 05/20/1998 | DE19647102A1 Strömungskörper Flow body |
| 05/20/1998 | DE19645554A1 Protecting propeller and rudder against algal growth during intervals of protracted inactivity |
| 05/14/1998 | DE19646649A1 Ship's propeller with antifouling material for protection against overgrowth |
| 05/13/1998 | EP0841502A1 Mechanism for reciprocating swivelling movement of objects rotating about a common shaft. |
| 05/07/1998 | DE19645198A1 Cycloidal propeller for ship |
| 05/06/1998 | CN2280663Y 螺旋桨 Propeller |
| 05/06/1998 | CN1180635A Straight wing propeller |
| 05/05/1998 | US5746631 High efficiency hydrofoil and swim fin designs |
| 04/23/1998 | DE19641571A1 Floating component for use in prime movers operated by running water |
| 04/21/1998 | US5740750 Method and apparatus for reducing drag on a moving body |
| 04/16/1998 | WO1998015453A1 Tractor pump jet |
| 04/02/1998 | WO1998013591A1 Improved heat exchanger and marine engine cooling apparatus |
| 04/01/1998 | CN1177560A Straight-wing propeller |
| 04/01/1998 | CN1177559A Ship propeller |
| 04/01/1998 | CN1177558A Universal propeller |
| 03/31/1998 | US5733156 Variable propeller for boat |
| 03/31/1998 | US5732665 Heat exchanger and marine engine cooling apparatus |
| 03/26/1998 | WO1998012104A1 Vertical axis and transversal flow nautical propulsor with continuous self-orientation of the blades |
| 03/25/1998 | EP0830285A1 A fluid propulsion system for accelerating and directionally controlling a fluid |
| 03/18/1998 | EP0829423A2 Cycloidal propeller |
| 03/18/1998 | EP0829422A2 Cycloidal propeller |
| 03/18/1998 | CN2276464Y Umbraella straight reciprocating propulsion |
| 03/17/1998 | US5727381 Duct flow control system |
| 03/05/1998 | WO1997046402A3 Man and wind powered aquatic vehicle |
| 03/05/1998 | DE19643278C1 Cycloidal propeller to drive ship |
| 03/05/1998 | DE19634522A1 Cross-flow fan with movable profiled blades for propelling aircraft |
| 03/04/1998 | CN2275551Y Antidrag ship |
| 02/26/1998 | WO1998007897A1 Prevention of marine encrustation on bronze propellers |
| 02/24/1998 | US5720596 Apparatus and method for locking blades into a rotor |
| 02/19/1998 | DE19632542A1 Water or wind flow turbine for ship drive |
| 02/17/1998 | US5718611 Personalized watercraft |
| 02/03/1998 | US5713727 Multi-stage pump powered by integral canned motors |
| 02/03/1998 | US5713294 Inflatable boat |
| 12/31/1997 | WO1997049603A1 A marine oscillatory-motion propulsion system |
| 12/31/1997 | CN1168848A Ship with reducing water resistance function |
| 12/30/1997 | US5702273 Marine propulsion system for underwater vehicles |
| 12/24/1997 | WO1997048599A1 Symmetrical foil for moving fluids |
| 12/16/1997 | US5697315 S-type marine rudder |
| 12/11/1997 | WO1997046402A2 Man and wind powered aquatic vehicle |
| 12/11/1997 | DE19623038A1 Boat-propulsion system using torsional oscillation e.g for medical remedial applications |
| 12/11/1997 | DE19622834A1 Propeller for use on ship or aeroplane |
| 12/10/1997 | EP0586511B1 Propulsive thrust ring system |
| 12/09/1997 | US5695370 Motorboat propeller |
| 12/04/1997 | WO1997045319A1 Device for ships, independent of the principal propulsion system, serving either as a passive rudder or as an active manoeuvring element |
| 12/04/1997 | WO1997045317A1 Method and apparatus for reducing drag on a moving body |
| 11/27/1997 | DE19620970A1 Vom Hauptantrieb unabhängige, wahlweise als passives Ruder oder als aktives Manövrierorgan einsetzbare Einrichtung für Schiffe From the main drive independent, which can be used either as a passive or an active rudder Manövrierorgan means for ships |
| 11/12/1997 | CN2267204Y Full turning |
| 10/23/1997 | WO1997038897A1 Blade for ship propellers |
| 10/16/1997 | WO1997037889A1 Blade of a hydraulic propulsion system |
| 10/07/1997 | US5673645 For travel above and below the water surface |
| 09/23/1997 | US5669793 Apparatus and method for propelling a water vehicle |
| 09/17/1997 | EP0795466A1 Cycloidal propeller with double or multiple blading |
| 08/27/1997 | CN2260768Y Float-pot caterpillar-ship |
| 08/14/1997 | WO1997029010A1 Water vehicle |
| 08/06/1997 | EP0787647A1 Device to reduce the sound emanating from the gear system of a ship propeller |
| 07/29/1997 | US5651707 Propulsive thrust ring system |
| 07/24/1997 | WO1997026181A1 Arrangement for steering a watercraft using a device which generates a directed jet of water |
| 07/23/1997 | EP0785129A1 Cycloidal propeller, especially for ship propulsion |
| 07/23/1997 | CN2258143Y Unequal blade-distance symmetrical butterfly four-blade propeller |
| 07/17/1997 | WO1997025109A1 High efficiency hydrofoil and swim fin designs |
| 07/17/1997 | DE19601226A1 Anordnung zum Steuern eines Wasserfahrzeuges unter Benutzung einer einen gerichteten Wasserstrahl erzeugenden Vorrichtung Arrangement for controlling a watercraft using a water jet directed a generating device |
| 07/17/1997 | CA2791379A1 High efficiency hydrofoil and swim fin designs |
| 07/17/1997 | CA2615635A1 High efficiency hydrofoil and swim fin designs |
| 07/03/1997 | DE19547785A1 Light unsinkable recreational boat for roving activities |
| 06/05/1997 | WO1997019849A1 Foldable propeller |
| 06/04/1997 | EP0776820A1 Propeller propulsion unit for aircrafts in general |
| 05/27/1997 | US5632661 Device, such as a propeller, for ships which is independent of the main propeller propulsion system and can be used as an active maneuvering mechanism |
| 05/01/1997 | WO1997015489A1 An improved propeller |
| 04/10/1997 | WO1997012768A1 Vehicle, especially amphibious vehicle |
| 03/27/1997 | DE19602043C1 Cycloidal propeller for ship drive |
| 03/26/1997 | EP0642437B1 A propeller having optimum efficiency in forward and rearward navigation |
| 03/18/1997 | US5611718 Auxiliary propelling device |
| 03/18/1997 | US5611666 Fluid forcing device |
| 03/04/1997 | US5607329 Integrated motor/marine propulsor with permanent magnet blades |
| 02/26/1997 | EP0759394A1 Tractor pump jet |
| 02/26/1997 | CN2248162Y Combined screw propeller |
| 02/24/1997 | CA2183835A1 Tractor pump jet |
| 02/19/1997 | EP0758606A1 Hub cap for ship propellers |
| 02/12/1997 | CN1142458A Spider vane propeller |
| 02/05/1997 | CN1142018A Centrifugal radial-telescopic impeller |
| 01/28/1997 | US5597245 Cavitation suppressing ducted propeller system |
| 01/14/1997 | US5593280 Propeller for boat |