Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6043203 | Compositions based on APG and ester quat surfactants | Allen D. Urfer, Oriol Ponsati Obiols | 2000-03-28 |
| 6028229 | Process for producing end-group-locked non-ionic tensides | Joaquim Bigorra Llosas, Rafael Pi Subirana, Antonio Trius Oliva | 2000-02-22 |
| 5886201 | Quaternized fatty acid triethanolamine ester salts with improved solubility in water | Joaquim Bigorra Llosas, Rafael Pi Subirana | 1999-03-23 |
| 5880299 | Esterquats | Oriol Ponsati Obiols, Joaquim Bigorra Llosas | 1999-03-09 |
| 5847229 | Process for the production of end-capped nonionic surfactants | Joaquim Bigorra Llosas, Antonio Trius Oliva, Rafael Pi Subirana | 1998-12-08 |
| 5627144 | Composition for enhanced crude oil recovery operations containing hydrochloric acid or hydrofluoric acid, or mixtures thereof with ester quaternary ammonium compounds or/and alkyl quaternary ammonium compounds | Allen D. Urfer, Oriol Ponsati Obiols | 1997-05-06 |