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 |
| 6070279 | Method and kit for retrofitting a plumbed eyewash station A kit for retrofitting a plumbed eyewash station is provided. The plumbed eyewash station includes a basin and an outlet pipe mounted within the basin. Prior to retrofitting the plumbed station, the outlet pipe is used to dispense water delivered thereto ... | 06/06/2000 |
| 5695124 | Self-contained emergency eye wash station A self-contained emergency eye wash station for dispensing eye wash fluid contained in a flexible container comprises a housing, a reservoir, and a platen. The housing supports the flexible container and supports a nozzle in fluid communication with the f... | 12/09/1997 |
| 5566406 | Self-contained emergency eye wash station A self-contained emergency eye wash station for dispensing eye wash fluid contained in a flexible container comprises a housing, a reservoir, and a platen. The housing supports the flexible container and supports a nozzle in fluid communication with the f... | 10/22/1996 |
| 5469587 | Portable emergency decontamination shower A portable shower comprises an upper polygon section, a base polygon section, a plurality of hollow supporting posts, and an inlet manifold. Each of the polygon sections includes a plurality of rigid hollow joints connected by flexible hoses. Each of the ... | 11/28/1995 |