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| Number | Title | Issue Date |
| 7367153 | Collapsible planar board The planar board disclosed features a convexo-concave board characteristic that allows the boards to channel the water creating a water rail for smoother more controlled performance. The planar board also features one removable cross member end that allows for colla... | 05/06/2008 |
| 7314014 | Water craft A water craft (77) is disclosed which includes a chassis portion (78), at least four water engaging means (30, 34, 38, 42) and interconnecting means (94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, ... | 01/01/2008 |
| 7255618 | Screw drive vehicle A screw drive vehicle has a main housing with forward and aft ends and first and second lateral sides. A first support arm rotatably supports a first pontoon assembly from the first lateral side of the main housing. A second support arm rotatably supports a second p... | 08/14/2007 |
| 6966807 | Screw drive vehicle A screw drive vehicle has a main housing with forward and aft ends and first and second lateral sides. A first support arm rotatably supports a first pontoon assembly from the first lateral side of the main housing. A second support arm rotatably supports a second p... | 11/22/2005 |
| 6910436 | Propulsion steered towboat A conventional style of towboat has been used on U.S. waterways for decades, with steering control reliant on a triad of rudders for each screw, resulting in up to a dozen rudders installed. This propulsion steered towboat relies on an enhanced method of steering wi... | 06/28/2005 |
| 5301623 | Multi hull vessel with bendable hulls A catamaran sailing vessel has both of its hulls articulated to provide substantially equal length forward and aft hull sections that are pivotally connected to one another about axes parallel to the yaw axis. A rigid deck structure spans the two hulls an... | 04/12/1994 |
| 3970025 | Catamaran A catamaran includes a system of at least two pairs of opposed pontoons arranged in tandem relation with one pair forwardly of the other. Each pontoon is supported near its mid point on a generally vertical axis to a superstructure. The pontoons of one pa... | 07/20/1976 |
| 3961590 | Catamaran watercraft A catamaran watercraft having a pair of parallel pontoons which pivot along their respective longitudinal axes. The pontoons are each preferably triangular in cross section, having a planar bottom surface and a linear top surface forming the longitudinal ... | 06/08/1976 |
| 3937171 | Multihull tugboat A tugboat of the kind used for moving and steering barges has laterally spaced individual hulls which are connected together by cross members in a parallel linkage connection. This permits the hulls to move relative to one another longitudinally while the... | 02/10/1976 |
