Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886872 | Novel cationic hydroxamate polymers | Josepha M. Fu | 1989-12-12 |
| 4885345 | Alkoxylated/cationically modified amide-containing polymers | — | 1989-12-05 |
| 4868248 | Polyhydroxyamic acid polymers from polyacrylic acids | John W. Sparapany, Josepha M. Fu | 1989-09-19 |
| 4829121 | Process for sulfoethylation of high molecular weight acrylamide containing polysoap latex polymers | Ralph W. Kaesler | 1989-05-09 |
| 4818506 | Gypsum scale inhibitors for flue gas desulfurization systems | Mei-Jan L. Lin, Richard J. Mouche, Baker N. Nimry | 1989-04-04 |
| 4802992 | Removal of dispersed oil from water | Ann M. Halverson | 1989-02-07 |
| 4801388 | Modified acrylamide polymers used as scale inhibitors | John E. Hoots, Donald A. Johnson | 1989-01-31 |
| 4795789 | Process for making acrylamido methane sulfonic acid polymers | — | 1989-01-03 |