Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12139626 | Irreversibly erasable ink composition having a discoloration agent | Guillaume CAFFIER | 2024-11-12 |
| 11920047 | Method for preparing thermochromic water-based gel ink compositions, and thermochromic water-based gel ink compositions thereof | Alexander Bourque | 2024-03-05 |
| 11787226 | Eraser tool containing polyetheramine | Guillaume CAFFIER | 2023-10-17 |