Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831065 | Antithrombogenic, non-calcifying material and method of making articles for medical purposes | Hanns Pietsch, Hans-Joachim Holtzmann, Gunther Sachau, Helmut Reul | 1989-05-16 |