Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4424290 | Filtrate reducer additive for swelling clay grouts and cement-swelling clay grouts | Jacky Rousset | 1984-01-03 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4424290 | Filtrate reducer additive for swelling clay grouts and cement-swelling clay grouts | Jacky Rousset | 1984-01-03 |