Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 6453207 | Method, system and article of manufacture for operating a process A complex industrial process is operated via computer control. Process control data regarding multiple process control variables is collected, along with output data regarding one or more process output properties. One or more of the process control varia... | 09/17/2002 |
| 6375120 | Method and apparatus for building a metal/composite hybrid airplane component A metal airplane component frame is fastened to a skin of composite material by a countersunk, beveled-head rivet extended through aligned openings in the metal layer and in a high load bearing strength material inlay embedded in the composite material sk... | 04/23/2002 |
| 6342173 | Method for producing polymer foam using a blowing agent combination Low-density, high service temperature polymer foam is extruded by heating a crystalline polymer resin above its crystalline melt point to melt the resin, selecting a blowing agent combination, combining the blowing agent combination with the resin to crea... | 01/29/2002 |
