Did You Know...
...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7275490 | Shallow draft floating vessel A catamaran-like one piece molded stable watercraft with sloping sides and a graduated sloping channel for supporting an individual and up to 600 pounds of gear without flipping and wherein the watercraft has a draft of no more than 6 inches fully loaded and less th... | 10/02/2007 |
| 7111569 | Individual propelled water craft An individual propelled catamaran watercraft with sloping sides and sloping channel adapted for supporting an individual without flipping and having a draft of no more than 3 inches. ... | 09/26/2006 |
| 7101235 | Air-boat sound suppressor and directional control system The instant invention relates to a sound suppressor and directional control system for use with a boat hull propelled by a rearward directed jet of air, e.g. an air-boat. The device includes a propeller shroud and a aft fairing each having a layer of acoustic materi... | 09/05/2006 |
| 6345584 | Hull for shipping with a mono-three-catamaran architecture A hull for shipping with a mono-three-catamaran architecture comprises a bow point (11) connected to hull sides (14, 15) that ends at a stern (12); a pair of chines (17, 18) disposed laterally to a center line (X--X), a keel (13) extending along the cente... | 02/12/2002 |
| 5379710 | Asymmetrical sailing catamaran keels The present invention consists of two asymmetrical hulls connected by a crossbeam or deck structure to make up a catamaran. Each hull has a rounded or shallow angled outer surface below the water line. The inboard side presents a vertical, or near vertica... | 01/10/1995 |
| 5377608 | Asymmetric pontoons for a water craft A water borne vessel is supported by a pair of laterally extendible pontoons, which pontoons are extended as a function of both speed and water conditions. A combination of extensible hydraulic cylinder units and threaded shafts selectively provide contro... | 01/03/1995 |
| 5199367 | Catamaran Two embodiments of hull designs for catamarans in which the sponsons are configured so as to provide a displacement type operation and in which the sponsons are configured so as to improve stability while reducing flow resistance. The sponsons are general... | 04/06/1993 |
| 5120249 | Combination catamaran boat and cross water ski system A combination catamaran boat and cross water ski system includes left and right hulls, a bridging deck, and a steering system. Each hull includes a rudder in its keel portion and a rudder plate on its top, connected by a rudder shaft for pivotal movement.... | 06/09/1992 |
| 4907520 | High performance boat hull with anti-spin sponson A tunnel hull boat with enhanced turning stability is provided. The boat hull hereof includes a pair of sponsons defining an air capturing tunnel. Each sponson includes front, middle, and rear sections delineated by distinct inclinations of the sponsons's... | 03/13/1990 |
| 4817548 | Multiple hull boat The invention relates to a multiple hull boat, especially a catamaran or trimaran. Extended hulls with various cross-sectional dimensions are provided as lifting device. The thickness of the hulls continuously increases abaft in the upper third part of th... | 04/04/1989 |
| 4811676 | Asymmetric minimum resistance hull An elongate hull configuration includes a top decking, a forward cutting edge sloping downwardly, rearwardly and laterally from a top point, a first side wall sloping downwardly and inwardly throughout its length, and a second side wall having a spiraling... | 03/14/1989 |
| 4348972 | Multipurpose trimaran Generally, different boats are needed for pulling waterskiers, sailing, fishing and camping. The reason for this is that a boat which would efficiently operate for all of these purposes, and which was sufficiently small to be trailerable, has not been ava... | 09/14/1982 |
| 4192249 | Vessel having two tubular float elements The vessel comprises a bottom-less support structure which itself ensures the buoyancy of the vessel. The structure has for this purpose hollow volumes integral with the structure and located in places which substantially correspond to the outer contour o... | 03/11/1980 |
| 4165701 | Sea-going craft A craft for traveling on a surface of a sea, the craft including a pair of parallel, spaced-apart, elongated pontoons or floats mounted to the underside of a cabin, which thus is supported elevated above the water surface, the forward ends of the pontoons... | 08/28/1979 |
| 4130078 | Floating device connected to a ship, for towing a submerged member with a lateral shift thereof with respect to the ship route Device for towing a submerged member from a ship, along a direction parallel to the ship route, and laterally shifted with respect thereto, comprising a submerged deflector, including a series of parallel paddles inclined with respect to the longitudinal ... | 12/19/1978 |
| 4086863 | Ocean-going catamaran An ocean-going catamaran has a pair of hulls which are connected by a bridge structure. Each hull has a longitudinal axis, forward hull portion and a rearward hull portion and is asymmetrical relative to its longitudinal axis. The forward and rearward por... | 05/02/1978 |
| 4008674 | Catamaran vessel An ocean-going catamaran has a pair of hulls which are connected by a bridge structure. Each hull has a longitudinal axis, forward hull portion and a rearward hull portion and is asymmetrical relative to its longitudinal axis. The forward and rearward por... | 02/22/1977 |
| 4002132 | Catamaran with plural drives A catamaran has two hulls each having longitudinal axes with reference to which the hull is asymmetrical. The hulls are located at opposite sides of a longitudinal symmetry line of the catamaran and the axes of the hulls are longitudinally inclined relati... | 01/11/1977 |
| 3988994 | Catamaran A catamaran vessel has a central longitudinal axis and is provided with a pair of elongated hulls located at opposite sides of its axis and each provided with a bulbous forefoot which is inclined to the longitudinal axis of the vessel. A hydrofoil connect... | 11/02/1976 |
