Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5874495 | Polymers useful as PH responsive thickeners and monomers therefor | — | 1999-02-23 |
| 5863526 | Homopolymers prepared from ammonium quaternary salts of aminoalkylacrylamides | Dominic Wai-Kwing Yeung, Stan Lem, Michael Prendergast | 1999-01-26 |
| 5770760 | Polymers useful as pH responsive thickeners and monomers therefor | — | 1998-06-23 |
| 5733854 | Cleaning compositions including derivatized guar gum composition including nonionic and cationic groups which demonstrate excellent solution clarity properties | Manjit Chowdhary | 1998-03-31 |
| 4934073 | Exercise-enhancing walking shoe | — | 1990-06-19 |