...In 1790, the cost to obtain a patent was between $4 and $5.
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 |
| 7025656 | Toy tube vehicle racer apparatus An apparatus for allowing an individual to simply assemble a transparent cylindrical conduit sectioned track system which guides a self propelled toy vehicle through this track system. A self propelled toy vehicle designed to run securely through transparent cylindr... | 04/11/2006 |
| 6557775 | Dolly track A portable, folding camera dolly track is assembled from a number of folding track sections, each track section having a parallel pair of rails, each rail having a base and a cylindrical wheel-supporting rail element, and a transverse spacer. A continuous... | 05/06/2003 |
| 5105741 | Portable equipment handling apparatus A portable equipment handling apparatus comprises a track assembly that can be laid out in any desired configuration throughout a manufacturing plant, on a construction site or other desired facility. A movable platform is mounted on the track assembly an... | 04/21/1992 |
| 5066834 | Flexible guide rail and method for manufacturing same A method for manufacturing multi-dimensionally curved guide rails having tubular cross-sections for passenger and material transportation systems, in which a hose-like plastic tube of any tubular cross-section is bent according to requirements and subsequ... | 11/19/1991 |
| 4801083 | Compound railroad track A compound railroad track wherein the head rail is easily replaceable without replacement of the supports, which comprise two extruded mirror-image L-shaped members, periodically spaced U-shaped separators, and a base plate, all suitably bolted and welded... | 01/31/1989 |
| 4503778 | Transportation system A transportation system for rapidly loading people from a platform into and from a plurality of cars. The system includes an elongated trackway which extends along a platform. Trolleys extend between the trackway and the cars supporting the cars on the tr... | 03/12/1985 |
| 4467924 | Movable aisle storage system A movable aisle storage system is provided having rail and panel connector units which perform the dual functions of forming the rails and interconnecting the deck panels of the system track and deck assembly. Each connector unit has a substantially cylin... | 08/28/1984 |
| 4245561 | Controllable distributing conveying systems A controllable distributing conveying system for transporting people or goods is provided with stations which are arranged on a passive rail network and which include container loading-on positions, container off-loading positions, and container depots. S... | 01/20/1981 |