Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857158 | Sodium hydrosulfite electrolytic cell process control system | — | 1989-08-15 |
| 4836903 | Sodium hydrosulfite electrolytic cell process control system | — | 1989-06-06 |
| 4810483 | Process for producing anhydrous alkali metal hydrosulfites | Roger E. Bolick, II, Joan A. Mabesoone | 1989-03-07 |