Did You Know...
...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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 |
| 6625846 | Caster for robot When a solid such as a utensil or a structure thing moves, stability is high, it is suitable for the indoor use, furthermore to provide the caster which can use the foot part of robot walking by the two pairs. A caster is comprised of a rocking shaft whic... | 09/30/2003 |
| 6267190 | Small electric vehicle A small electric vehicle is provided including a frame formed of a plurality of tubular elements, a tubular element connected to the front of the frame and supporting a handle bar and steerable front wheel or runner, a pair of driven rear wheels connected... | 07/31/2001 |
| 4869336 | Snowmobile A snowmobile including a body a pair of rear wheels with tires a motor for driving the rear wheel, an axis connected to a handle originally for a front wheel, and skid member mounted on the axis. The skid member comprises a skid, extending in the longitud... | 09/26/1989 |
| 4754832 | Ski and mount for four wheel vehicle A single ski is disclosed for central mounting under a four wheel vehicle, preferably a vehicle having four wheel drive. This single ski is mounted to the underside of the vehicle and includes a jacking mechanism for raising and lowering the ski in parall... | 07/05/1988 |
| 4570738 | Snow vehicle equipped with wide, low-pressure tires Disclosed is a vehicle which is constructed to include a pair of steerable right and left front skis suspended from a front portion of a frame. Further included are a pair of right drive wheels and a pair of left drive wheels which are suspended from a re... | 02/18/1986 |
| 4522420 | All terrain vehicle conversion system Structurally integrated equipment is selectively, individually or conjointly detachably attachable to a three-wheeled vehicle for preventing rearward tipover, carrying cargo, rendering the vehicle waterborne, enhancing travel over snow or providing power ... | 06/11/1985 |
| 4168841 | Conversion system for pedal operated cycles with improved rear wheel apparatus The specification discloses a conversion system for a pedal operated cycle to provide a pedal operated cycle for use on ice and/or a motor operated cycle for use on snow, both with improved rear wheel apparatus, wherein a regular bicycle can be converted ... | 09/25/1979 |
