Bizarre Patents
An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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.
| Application No. | Application Title | Issue Date |
| 20110297064 | ADJUSTABLE KEEL FOR A SAILBOAT A sailboat, which include an extendable keel having a moveable inner member positioned within a fixed keel and a control system for lowering or retracting the inner member.... | 12/08/2011 |
| 20100218713 | IMPACT ABSORBING DROP KEEL The present invention relates to a keel construction for a floating vessel, where a drop keel (3) can be adjusted from a retracted/extended position to an extended/retracted position for the purpose of varying the steering and gravity point of the floating vessel... | 09/02/2010 |
| 20090288586 | ADJUSTABLE KEEL FOR A SAILBOAT A sailboat, which include an extendable keel having a moveable inner member positioned within a fixed keel and a control system for lowering or retracting the inner member.... | 11/26/2009 |
