Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4747961 | Method and system for treating drill cutting slurries and the like | Ying LI | 1988-05-31 |
| 4636372 | Aluminum fluorophosphates made from impure phosphoric acids and conversion thereof to alkalimetal phosphates | Elie Chemtob | 1987-01-13 |
| 4505884 | Process for producing HF from impure phosphoric acids | Elie Chemtob | 1985-03-19 |
| 4379776 | Process for reducing aluminum and fluorine in phosphoric acids | Elie Chemtob | 1983-04-12 |