Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886586 | Combination electrolysis cell seal member and membrane tentering means for a filter press type electrolytic cell | — | 1989-12-12 |
| 4877499 | Membrane unit for electrolytic cell | Richard N. Beaver | 1989-10-31 |
| 4839012 | Antisurge outlet apparatus for use in electrolytic cells | Harry S. Burney, Jr., Richard N. Beaver, Robert D. Spradling | 1989-06-13 |