Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810503 | Polymers which form gels at low concentrations in water | James P. Owens | 1989-03-07 |
| 4797229 | Functional fluids containing associative polyether thickeners, certain dialkyl-dithiophosphates, and a compound which is a source of molybdate ion | Mark A. Frentrup, Joseph R. Gibson, Pauls Davis | 1989-01-10 |