"Inventing is a combination of brains and materials. The more brains you use, the less material you need."
Charles Kettering
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 |
| 5460098 | Air-cushion vehicle transportation system A land transportation system comprising a fully enclosed tubular guideway and a self-propelled air-cushion vehicle disposed in the guideway for providing short and long distance transportation within an enclosed environment. The tubular guideway is secure... | 10/24/1995 |