Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874527 | Method for controlling silica/silicate deposition in aqueous systems using imines | — | 1989-10-17 |
| 4808215 | Method of improving the flowability of agro-chemical slurries | Richard G. Varsanik | 1989-02-28 |