Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4416628 | Push-button switch as used in oral hygiene appliance | Michael A. Cammack, Clarence J. Hickman, Keith M. Mullins | 1983-11-22 |
| 4337040 | Oral hygiene appliances | Michael A. Cammack, Clarence J. Hickman, Keith M. Mullins | 1982-06-29 |
| 4303201 | Showering system | David W. Smith, John M. Trenary | 1981-12-01 |
| 4302186 | Oral hygiene appliances | Michael A. Cammack, Clarence J. Hickman | 1981-11-24 |
| 4275908 | Fluid coupling assembly | David W. Smith | 1981-06-30 |
| 4229634 | Insulated switch arrangement for electric motor | Clarence J. Hickman, Donald W. Ruehmann | 1980-10-21 |