Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648069 | 4-[(2-oxo-3-bornylidene) methyl]phenyltrimethylammonium methyl sulfate in a permanent hair shaping composition for protection against the ravages of the weather and in particular against light | Ly Lan N'guyen | 1997-07-15 |