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 |
| 4982820 | Container for use by travelling sales person A container for use by a travelling sales person to transport goods, especially garments, from one retail outlet to another comprises a bag with a display stand secured therein and movable between a collapsed state within the bag for transportation purpos... | 01/08/1991 |
| 4938366 | Display unit A display unit for articles comprises a plurality of elongate channels 3 suspended one from the other. Each of the channels 3 is of generally J-shaped cross-section for supporting the articles in the troughs thereby formed. Each longer arm of the J-shaped... | 07/03/1990 |