Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5310146 | Dual axis leveling system | — | 1994-05-10 |
| 5141349 | Method and apparatus for treating the blade of a razor head | Anna A. Gripp, Gottfried Metzler, III, Stephen Litzow | 1992-08-25 |
| 4974319 | Novel shaving system | Anna A. Gripp, Gottfried Metzler, III, Stephen Litzow | 1990-12-04 |
| 4268738 | Microwave energy moderator | Thomas J. Flautt, Jr., David L. Richardson | 1981-05-19 |