Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838904 | Semi-permeable membranes with an internal discriminating region | Daniel O. Clark, John A. Jensvold | 1989-06-13 |
EJ
Edgar S. Sanders, Jr.
Overall (1989): #117,745 of 140,708Top 85%
1
Patents 1989