Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871779 | Ion exchange/chelation resins containing dense star polymers having ion exchange or chelate capabilities | George R. Killat | 1989-10-03 |
| 4857599 | Modified dense star polymers | James R. Stahlbush | 1989-08-15 |