Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5057306 | Method of manufacturing oral hygiene gels | Ira D. Hill | 1991-10-15 |
| 5057307 | Method of relieving gum discomfort | Ira D. Hill | 1991-10-15 |
| 5032387 | Dental and oral hygiene preparations | Ira D. Hill | 1991-07-16 |
| 5009881 | Oral hygiene gels | Ira D. Hill | 1991-04-23 |
| 4950479 | Method of interrupting the formation of plaque | Ira D. Hill | 1990-08-21 |
| 4942034 | Dental stimulator | Ira D. Hill | 1990-07-17 |
| 4917519 | Writing instruments with rotatable wheel actuator | Michael B. Seal | 1990-04-17 |
| 4911927 | Method and apparatus for adding chemotherapeutic agents to dental floss | Ira D. Hill | 1990-03-27 |
| 4882765 | Data transmission system | Ray F. Maxwell | 1989-11-21 |
| 4797997 | Dry shavers | Charles C. Packham, Steven Rogers | 1989-01-17 |
| 4737992 | Compact electroacoustical transducer with spider covering rear basket opening | Ernest Latham-Brown, Rakesh C. Pandey, Brandon Westley | 1988-04-12 |
| 4551035 | Marking instrument | Hugh W. B. Baker | 1985-11-05 |
| 4339788 | Lighting device with dynamic bulb position | Donald Weiss | 1982-07-13 |
| 4252228 | Two-hand mechanical control device | — | 1981-02-24 |