Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825851 | Method for comminuting kidney stones | Scott R. Akers | 1989-05-02 |
| 4821301 | X-ray reflection method and apparatus for chemical analysis of thin surface layers | Roland Gettliffe | 1989-04-11 |