Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 6446388 | Container with diffuse extended irrigation for cultivating plants A container with diffuse and extended irrigation for cultivating plants, which includes porous regions in the containment walls, which are arranged in contact with the soil of a plant, and a water reserve for supplying the porous regions. The container fu... | 09/10/2002 |
| 6126824 | Scum removal system for liquid treatment tank A scum removal system for a sewage treatment or clarification tank having a feedwell or skimmer flight includes a scum trough disposed within the settling tank. A floating weir is disposed proximate to the scum trough. A membrane or sheet is partially wra... | 10/03/2000 |
| 5419761 | Liposuction apparatus and associated method A method for removing adipose tissue uses an elongate rigid tube or probe member having a distal end and a proximal end and an axially extending lumen. An incision is formed in a skin surface of a patient, the tube being inserted through the incision into... | 05/30/1995 |
| 5404183 | Multifocal contact lens and method for preparing A method for use in preparing a customized multifocal contact lens includes the step of providing a standard diagnostic contact lens having an annular portion with a concave cornea-fitting posterior surface and a central portion with a predetermined conve... | 04/04/1995 |
