William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 8126249 | Methods of and system for detection and tracking of osteoporosis A method and system for detection and tracking of osteoporosis is disclosed. A method of characterizing an image of a target vertebra includes building a computer model from a set of sample images of pathological and non-pathological variations of vertebrae represen... | 02/28/2012 |
| 7557229 | Atomic layer deposition using metal amidinates Metal films are deposited with uniform thickness and excellent step coverage. Copper metal films were deposited on heated substrates by the reaction of alternating doses of copper(I) N,N′-diisopropylacetamidinate vapor and hydrogen gas. Cobalt metal films were dep... | 07/07/2009 |
| 7556746 | Method of making an applicator liquid for electronics fabrication process Certain spin-coatable liquids and application techniques are described, which can be used to form nanotube films or fabrics of controlled properties. A method of making an applicator liquid containing nanotubes for use in an electronics fabrication process includes ... | 07/07/2009 |
| 7259410 | Devices having horizontally-disposed nanofabric articles and methods of making the same New devices having horizontally-disposed nanofabric articles and methods of making same are described. A discrete electromechanical device includes a structure having an electrically-conductive trace. A defined patch of nanotube fabric is disposed in spaced relation... | 08/21/2007 |