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Class Information
Number: 114/62
Name: Ships > Displacement-type hull (e.g., specific aftbody, etc.) > Having specific bottom > Concave bottom
Description: Forms of hull presenting a more or less concave surface to the water from bilge to bilge, bilges to keel, or longitudinally.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6345584 |
Hull for shipping with a mono-three-catamaran architecture |
Feb. 12, 2002 |
| 6210242 |
Pedal-powered watercraft |
Apr. 3, 2001 |
| 5718184 |
Hydro-lift boat hull |
Feb. 17, 1998 |
| 5582123 |
Multiple concavity surfing ship and transition system |
Dec. 10, 1996 |
| 5497722 |
Keelless concave hull |
Mar. 12, 1996 |
| 5427048 |
Multi-concave hydrodynamically designed hull |
Jun. 27, 1995 |
| 5402743 |
Deep chine hull design |
Apr. 4, 1995 |
| 5398628 |
Surfing ship transition system |
Mar. 21, 1995 |
| 4936237 |
Dual boat hull |
Jun. 26, 1990 |
| 4922844 |
Sailing-boat hull |
May. 8, 1990 |
| 4760810 |
Hull for small watercraft |
Aug. 2, 1988 |
| 4574724 |
Boat-hull construction |
Mar. 11, 1986 |
| 4509927 |
Bottom exhaust high speed boat |
Apr. 9, 1985 |
| 4193369 |
High speed boat hull |
Mar. 18, 1980 |
| 4192248 |
Scooped boat hull having tri-keel surfaces |
Mar. 11, 1980 |
| 4003327 |
Monolithic ship's body of steel concrete or prestressed concrete |
Jan. 18, 1977 |
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