Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686024 | Aqueous dispersion of a surface active polymer having enhanced performance properties | Tao Gao, Eric H. Larson | 1997-11-11 |
| 5656586 | Amphoteric surfactants having multiple hydrophobic and hydrophilic groups | Ji Li, Robert Lee Reierson, David J. Tracy | 1997-08-12 |
| 5654480 | Recovery and reuse of surfactants from aqueous solutions | Yun Brian Yang | 1997-08-05 |
| 5643498 | Quaternary cationic surfactants having multiple hydrophobic and hydrophilic groups | Ji Li, Robert Lee Reierson, David J. Tracy | 1997-07-01 |
| 5643864 | Anionic surfactants having multiple hydrophobic and hydrophilic groups | Ji Li, Robert Lee Reierson, David J. Tracy | 1997-07-01 |