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 |
| 6922854 | Air-burst drain plunger An affordable plumbing device that uses a compressed gas and a burst disk having a relatively even surface of substantially uniform thickness to produce a sudden discharge of energy to forcibly act against any obstruction that may interfere with the proper function ... | 08/02/2005 |
| 6775858 | Elevating toilet seat with lid opening mechanism A height adjustable toilet seat apparatus for disabled users includes a toilet seat having a hinged lid. The apparatus may be fixed to a toilet bowl or to a wheelchair and includes telescopic legs for supporting the toilet seat and lid at different heights. A lid op... | 08/17/2004 |
| 6537314 | Percutaneous mitral annuloplasty and cardiac reinforcement A mitral annuloplasty and left ventricle restriction device is designed to be transvenously advanced and deployed within the coronary sinus and in some embodiments other coronary veins. The device places tension on adjacent structures, reducing the diamet... | 03/25/2003 |
| 6314412 | Evolutionary control of machine based on user's preference inferred from user's operation An evolutionary control for a subject such as an engine installed in a vehicle is conducted by the steps of: selecting coefficients, as genes, affecting the control characteristics of the control system; creating plural control units as chromosomes, each ... | 11/06/2001 |
| 6304862 | Evolutionary controlling system An evolutionary control for a subject such as an engine installed in a vehicle is conducted by the steps of: selecting coefficients, as genes, affecting the control characteristics of the control system; creating plural control units as chromosomes, each ... | 10/16/2001 |
| 6303705 | Method for using rubber product or rubber member The present invention provides a method for using a rubber product or a rubber member in which at least one portion of the surface of the rubber product or the rubber member to be used in clean environments is allowed to swell by using a solvent, and then... | 10/16/2001 |
| 6001263 | Distiller's dried grain as oil dispersant A method and composition for dispersing oil. Distiller's dried grain is applied to an oil spill or to an animal or object contacted with oil. The distiller's dried grain sorbs and disperses the oil, allowing dispersal of the oil in open water or removal o... | 12/14/1999 |
