Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5888434 | Process for making a microporous membrane from a blend containing a poly (phenylene sulfide) polymer, an amorphous polymer, and optionally a solvent | Robert D. Mahoney, Richard A. Lundgard, Mark F. Sonnenschein, Hawk S. Wan, H. Nelson Beck | 1999-03-30 |
| 5246647 | Process of making microporous hollow fiber or film membrane of poly(phenylene sulfide) (PPS) | Henry N. Beck, Robert D. Mahoney, Hawk S. Wan, Chieh-Chun Chau, Timothy M. Finney +2 more | 1993-09-21 |
| 5227101 | Process of making microporous membranes from poly(etheretherketone)-type polymers and low melting point crystallizable polymers | Robert D. Mahoney, H. Nelson Beck, Richard A. Lundgard, Hawk S. Wan, Mark F. Sonnenschein | 1993-07-13 |