Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6423101 | Ammonia-free composition for dyeing keratinous fibres | Myriam Yaker | 2002-07-23 |
| 4896816 | Method for producing a fluidtight and heat curable seal between metal objects and a body of vitroceramic material | Jean-Jacques Roland | 1990-01-30 |