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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| Application No. | Application Title | Issue Date |
| 20110252678 | METHOD, APPARATUS AND SYSTEM FOR CONSTANT LED NIGHT BRIGHTNESS BASED ON DAYTIME SOLAR CHARGING A street sign method, system and apparatus includes at least one translucent sign face, a solar photovoltaic panel system for generating electrical energy from sunlight, a rechargeable battery system for storing the electrical energy during the day, at least one Light E... | 10/20/2011 |
| 20110107633 | ILLUMINATED SIGN WITH SUPPORTS An illuminated sign with supports has a housing, a front cover upon the housing and an opposite rear cover, hooks and spikes for mechanical securement, magnets and adhesive for physical securement, a power supply, sensors to control illumination of the sign, light sourc... | 05/12/2011 |
| 20110061275 | SYSTEM AND METHOD OF ADVERTISING AND ADVERTISEMENT DISPLAY DEVICE A system and method of presenting “one-to-one” advertising within a parking spot and a corresponding parking block display device is presented. The system and method comprise an illuminated advertisement message displayed and directed toward an associated vehicle pa... | 03/17/2011 |
| 20100000134 | Solar Power Generation Display Assembly and Method for Providing Same The present invention relates to a solar power generation display assembly and methods for providing same involving solar arrays in a display of designated indicia, each solar array containing one or more electronically linked solar modules or cells of a crystalline or ... | 01/07/2010 |
| 20060191179 | Compact road sign display A display assembly includes a translucent signboard, a housing and a light source. The housing has a base, a cover and a pair of lateral covers fixedly secured to each other to define a rectangular opening for supporting the signboard therein. The light source is fixedl... | 08/31/2006 |
| 20050039361 | Method and apparatus for backlit signs with light emitting diode modules A backlit sign with an LED module, with a housing that includes a top wall having a first length, a bottom wall having a second length, and a pair of opposing sidewalls each having a third length, wherein at least a portion of one of the sidewalls is translucent. One or... | 02/24/2005 |