Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871671 | Immobilization of biological cells in polytetrafluoroethylene matrix | George R. Hunt | 1989-10-03 |
| 4810381 | Composite chromatographic article | Donald F. Hagen, Steven J. St. Mary, Peter W. Carr | 1989-03-07 |