Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4962131 | Composition useful in process for preparing powadir membranes from tetrahalobisphenol a polycarbonates | Henry N. Beck, Edgar S. Sanders, Jr. | 1990-10-09 |
| 4772392 | Process for preparing POWADIR membranes from tetrahalobisphenol A polycarbonates | Edgar S. Sanders, Jr., Daniel O. Clark, John A. Jensvold, Henry N. Beck, Frederick L. Coan | 1988-09-20 |