Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 5222689 | Aircraft having magnetic suspension systems An aircraft having magnetic suspension systems adapted to be used as a winged surface effect aircraft, as a conventional type aircraft and as an aircraft of vertical take-off. A winged surface effect aircraft is provided with a magnetic suspension system ... | 06/29/1993 |
| 4979445 | Magnetically levitated vehicle with superconducting mirror sheets interacting with guideway magnetic fields A magnetically levitated vehicle in which on-board sheets of superconductive material interact with guideway magnetic fields to levitate, drive, and brake the vehicle.... | 12/25/1990 |
| 4299173 | Levitation and guide mechanism for curved track in inductive repulsion type vehicle magnetic levitation and guide system An improvement in an inductive repulsion type vehicle magnetic levitation and guide system for a curved track in which the vehicle is levitated by an electromagnetic force generated between levitation conductors having the same time constant and laid in t... | 11/10/1981 |
| 3952668 | Electrodynamic suspension guidance system An improved electrodynamic suspension guidance system for a moving vehicle in which primary conductor loops or magnet coils are mounted to a vehicle in rows parallel to the travel direction, with pairs of magnet coils disposed horizontally one above the o... | 04/27/1976 |
| 3951075 | Electro dynamic suspension and guidance system for a moving vehicle Contactless suspension and guidance of a vehicle using a plurality of primary magnet loops in the vehicle arranged parallel to each other which react with secondary conductors on the roadbed is obtained by providing two vertically arranged primary conduct... | 04/20/1976 |
| 3937150 | Magnet system for use in electrodynamicly suspended vehicles An improved magnet system for use in electrodynamic vehicle suspension and guidance systems in which a vehicle moves along a track maintained in the suspended condition through the use of a plurality of magnets attached to the vehicle and arranged one beh... | 02/10/1976 |
