Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5063050 | Tableted powder cosmetics | Debra Verdon, Marlene Tietjen | 1991-11-05 |
| 4994264 | Press molded cosmetic composition with pay off | Debra Verdon | 1991-02-19 |
| 4980155 | Two phase cosmetic composition | Arvind N. Shah | 1990-12-25 |
| 4837011 | Cosmetic powder employing spherical silica particles | Ralph Macchio, Marlene Tietjen | 1989-06-06 |
| 4578266 | Silicone-based cosmetic products containing pigment | Marlene Tietjen, Ralph Macchio | 1986-03-25 |