Patents for B63B 41 - Drop keels, e.g. centre boards or side boards (421) |
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08/21/1990 | US4949919 Foil |
06/27/1990 | EP0374138A1 Flanged fin for watercraft |
06/26/1990 | US4936240 Structure for holding underwater projections |
06/20/1990 | EP0373913A1 Improved keel |
05/29/1990 | US4928613 Retractable steering device for cargo barges that increases maneuverability by providing a pivot point or points when altering course |
04/03/1990 | US4913670 Blade-like profiled device for acting on a gaseous or liquid fluid flow |
03/28/1990 | EP0236409B1 Foil |
01/09/1990 | US4892493 Supplemental sailboat propulsion device |
11/28/1989 | US4883011 Hydrofoil keel |
10/05/1989 | WO1989009159A1 Sailing yacht |
09/12/1989 | CA1259199A1 Locking device for articles such as sailboards |
08/29/1989 | US4860680 Sailboat with leeway reducing keel |
08/01/1989 | US4852507 Sail-wing and controls for a sail craft |
07/27/1989 | WO1989006621A1 Sailing yacht with centre-board device |
07/20/1989 | DE3800163A1 Boat, in particular a sports (sporting) boat having a centre-board |
07/13/1989 | DE3744582A1 Keel having wings arranged on both sides, in particular for ocean-going sailing yachts |
07/13/1989 | DE3742846A1 Anti-capsize rudder |
04/20/1989 | WO1989003339A1 A sailing craft |
04/04/1989 | US4817550 Stabilizing system for vehicles and method for using same |
03/14/1989 | US4811674 Foil arrangement for water-borne craft |
02/16/1989 | DE3824004A1 Floating arrangement with at least two hollow floating bodies joined together at a distance apart |
02/16/1989 | DE3726439A1 Self-righting sailing boat |
01/17/1989 | US4798157 Drogue associated with a guidance system |
01/10/1989 | US4796554 Sailboat |
12/01/1988 | WO1988009286A1 Fin, keel, or leeboard for sailing vessels, boats and surf boards equipped with a sail |
10/20/1988 | WO1988007883A1 Flanged fin for watercraft |
09/28/1988 | EP0283730A1 Aerodynamic body surrounded with air or water |
09/22/1988 | DE3708159A1 Wing |
09/21/1988 | EP0282830A2 Device in a gas or fluid stream with a split airfoil to increase the efficiency |
08/18/1988 | DE3713176A1 Sailing boat with winged keel |
07/26/1988 | US4759308 Sealing lip assembly for surfboards and sailboats |
07/21/1988 | DE3700711A1 Spreader keel for ballast keel yachts |
05/26/1988 | DE3731022A1 Sailing yacht, yawl, or the like |
04/20/1988 | EP0264279A1 Foil assembly for water-borne craft |
03/03/1988 | DE3627925A1 Sailing vessel hull with steering fins and ballast trimming vanes |
01/26/1988 | US4721051 Tandem winch reels |
01/14/1988 | WO1988000151A1 Keel for boats |
12/29/1987 | US4715306 Catamaran with a steerable centerboard apparatus and an improved deck joint |
12/17/1987 | DE3619962A1 Device for reducing the lateral drifting of water craft in particular water craft which travel under sail |
11/09/1987 | EP0232252A4 A steerable keel. |
11/03/1987 | US4703708 Steerable keel |
10/28/1987 | EP0242408A1 Sail boat |
10/21/1987 | EP0241472A1 Fast self righting catamaran |
09/16/1987 | EP0236409A1 Foil. |
09/02/1987 | EP0234824A2 Locking device for articles such as sailboards |
09/01/1987 | US4690089 Boat with a raisable and lowerable keel |
08/19/1987 | EP0232359A1 Sailing boat. |
08/19/1987 | EP0232252A1 A steerable keel. |
08/18/1987 | US4686923 Sailboat keel having a cantilevered trailing edge flap |
08/18/1987 | US4686922 Swing wing keel |
07/29/1987 | EP0230272A2 Hinge for drop keels of windsurf boards or sail boats |
07/29/1987 | EP0229785A1 Splitwing keel |
07/21/1987 | US4680949 Locking device for articles such as sailboards |
04/23/1987 | WO1987002320A1 Fast self righting catamaran |
04/08/1987 | EP0216838A1 Device for a tractor-drawn center-board boat associated to a guiding system |
03/19/1987 | DE3531994A1 Keel design for sailing boats |
03/12/1987 | WO1987001345A1 Foil |
02/12/1987 | WO1987000814A1 A steerable keel |
02/12/1987 | WO1987000812A1 Sailing boat |
01/21/1987 | EP0209130A1 A sealing lip assembly for surfboards and sailboats |
01/15/1987 | WO1987000136A1 Splitwing keel |
10/09/1986 | WO1986005757A1 Device for a tractor-drawn center-board boat associated to a guiding system |
09/09/1986 | US4610212 Fast self righting catamaran |
07/30/1986 | EP0189154A1 Boat with retractable keel |
07/01/1986 | US4597348 Detachable keel for small boats |
01/14/1986 | US4563971 Retractable boat keel |
12/31/1985 | US4561371 Catamaran stabilization structure |
09/03/1985 | US4538539 Deformable shrouded water foil |
08/27/1985 | US4537143 Apparatus for the stabilizing of the direction of travel of watercraft, specifically a sword or fin for sailboards |
05/08/1985 | EP0140758A1 Adjustable centre board for sailing vessels |
04/30/1985 | CA1186181A1 Apparatus for the stabilizing of the direction of travel of watercraft, specifically a sword or fin for wind surfing boards |
03/12/1985 | US4503795 Sailing craft |
06/12/1984 | US4453484 Hull of a boat, provided with keel and rudder |
03/21/1984 | EP0102944A1 Lee-board for sailing boat |
09/27/1983 | US4406239 Sailboats, especially catamarans |
08/18/1983 | WO1983002760A1 Lee-board for sailing boat |
08/16/1983 | US4398485 Device for detachably securing a centerboard to a sailboard or the like |
06/14/1983 | US4387657 Centerboard snubber |
05/18/1983 | EP0079113A1 A fin for a buoyant support |
05/03/1983 | US4381725 Actuators for small sailing craft |
04/05/1983 | US4378748 Sailboat keel apparatus |
03/22/1983 | US4377124 Sailboat with an inclinable keel board |
03/15/1983 | US4376416 Convertible sailboat/motorboat |
01/19/1983 | EP0069916A1 Means for stabilizing the direction of boats, especially keel or fin for wind surf-boards |
10/05/1982 | US4352335 Yacht keels |
08/24/1982 | US4345535 Sailboat trimming and stabilizing system |
05/27/1982 | WO1982001694A1 Sailing board with fixing device for a fin |
05/04/1982 | US4327659 Minimum drag fluid reaction element and fluid control methods |
04/27/1982 | US4326475 Sailboat |
04/20/1982 | US4325154 Surfboard fin |
04/07/1982 | EP0049018A1 A sailing craft |
02/23/1982 | US4316425 Lifting keel for sporting sail boats |
02/03/1982 | EP0045293A1 Boat with multiple hulls using sails |
11/26/1981 | WO1981003311A1 Floating arrangement,particularly multiple hull boat with sail propulsion |
09/08/1981 | CA1108481A1 Lifting keel for sporting sail boats |
09/02/1981 | EP0034990A1 Fastening device for a fin or a centre-board on a surf-board |
07/28/1981 | US4280428 Non-heeling sailboat |
07/23/1981 | WO1981001990A1 Body acting as a fin or center board of a sailing boat |
07/22/1981 | EP0032223A1 Arrangement at a sailing-boat of a body serving as fin keel or centre board |
12/09/1980 | CA1091103A1 Vertical stabilizer for kayak |