Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846977 | Method and device for separating polar from non-polar liquids using membranes | Robert DeVellis, Lawrence R. Schroeder, H. Hunter Paalman, Terrence L. Caskey, Charles W. Martin | 1989-07-11 |