...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 |
| 7261860 | Apparatus and method for centrifugation and robotic manipulation of samples A device for centrifugation and robotic manipulation of specimen samples, including incubating eggs, and uses thereof are provided. The device may advantageously be used for the incubation of avian, reptilian or any type of vertebrate eggs. The apparatus comprises a... | 08/28/2007 |
| 6699669 | Multistage electromagnetic separator for purifying cells, chemicals and protein structures The present invention relates to improved techniques for separating cells, particles and molecules important to medical science and biotechnology because separation is frequently the limiting factor for many biological processes. The apparatus and method ... | 03/02/2004 |