Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691380 | Stable n-acetylcysteine compositions and methods for treating human skin therewith | Brent William Mason, Joseph Michael Zukowski, Greg George Hillebrand | 1997-11-25 |
| 5603923 | Artificial tanning compositions having improved color development | Paul Robert Tanner | 1997-02-18 |