Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5391580 | Poly(sulfone-alpha-olefin) composite permselective membrane article for use in blood oxygenation | Mary B. Douglas, Don N. Gray, Christopher S. Youngen | 1995-02-21 |
| 4666644 | Method of making asymmetrical layered structures from polyalkylene sulfone resins | — | 1987-05-19 |
| 4568579 | Asymmetrical layered structures of polyalkylene sulfone resins | — | 1986-02-04 |
| 4209066 | Method and apparatus for running tubular goods into and out of a borehole | — | 1980-06-24 |