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| Number | Title | Issue Date |
| 7370596 | Kayak having stabilizing flares A kayak comprises a hull with a relatively narrow cross sectional underwater width for increasing speed and efficiency of the kayak moving through water and first and second pairs of convex surfaces for providing kayak stability. ... | 05/13/2008 |
| 7117810 | Platform structure The invention relates to a floating platform (1) for offshore drilling or production of hydrocarbons, comprising a topsides (2) and a substructure (3) having a lower pontoon (4) and columns (5) connecting the pontoon (4) to ... | 10/10/2006 |
| 6427615 | Modularized unmanned marine surface vehicle A modularized unmanned marine surface vehicle contains control section and propulsion section. The control section is composed of bow section, control cabin, probing module, communication module and conjunction module. The propulsion section contains an e... | 08/06/2002 |
| 6065414 | Watercraft and hull systems The invention includes new hull systems and watercraft. In particular, the invention provides a watercraft hull (10) that has a pivot axis (22) forward of the hull waterline fore-aft center line (24). That pivot axis (22) will be the deep water point of t... | 05/23/2000 |
| 6058864 | Ship hull and vessel with such a hull A ship hull with bulb prow and with bottom which extends without sharp changes from the bulb to the square stern of the hull along continuously bent longitudinal lines and with hull sides which are inclined from the vertical plane from the waterline to th... | 05/09/2000 |
| 5832855 | Ship's hull A ship's hull including a first hull part arranged as a hard-chine-hull disposed on a second hull part in the shape of a super-slender float. During in service conditions, only the aft half of the first hull part intersects the water surface so that two s... | 11/10/1998 |
| 5730391 | Universal fluid-dynamic body for aircraft and watercraft A body configuration for improving the fluid-dynamic performance efficiency of aircraft and watercraft comprises a generally conical upper segment (54) and a generally conical lower segment (56) that are joined at a common base plane (53), achieved by inv... | 03/24/1998 |
| 5172646 | Canoe with asymmetrical hull A watercraft such as a canoe and the like which is propelled by paddling is disclosed that can be paddled on one side and propelled generally in a straight line. The watercraft includes an asymmetrical hull which is asymmetrical along its length and also ... | 12/22/1992 |
| 5072681 | Passenger ship A passenger ship having asymmetrical superstructures which define two distinct free spaces at the bulwarks, on the sides of the main deck. These spaces are mutually asymmetrical with respect to the diametrical plane of symmetry of the hull; the space prox... | 12/17/1991 |
| 4781135 | Ship hull A ship hull has a general frame form defining a bottom surface and two side surfaces. The bottom surface of the hull has a horizontal bottom section that extends longitudinally of the hull midway between the two side surfaces of the hull, and the bottom s... | 11/01/1988 |
| 4079688 | Displacement hull A low-drag hull for high-speed displacement type water-craft is constructed with a constant-section keel-less midbody having a length equal to or greater than one-third of the waterline length of the hull, and with a run of less than one-sixth of the hull... | 03/21/1978 |
| 4046092 | Ship's hull A displacement ship for the transport selectively of low and high density cargo includes a hull having a trapezoidal cross-section and extending between the stem and stern of the ship. The sides of the hull form an angle of from 35° to 55° with the hori... | 09/06/1977 |
| 3938457 | Tanker hull modification In a large ocean going oil tanker vessel having water ballast compartments that cannot be utilized for oil cargo also the amount of ballast water required to submerge the vessel to a predetermined ballast draft is reduced by cutting away a portion of the ... | 02/17/1976 |
