Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5211894 | Skin replication technique | David G. Groh | 1993-05-18 |
| 5129724 | Apparatus and method for simultaneous measurement of film thickness and surface height variation for film-substrate sample | Chris P. Brophy, Donald K. Cohen | 1992-07-14 |
| 5122648 | Apparatus and method for automatically focusing an interference microscope | Donald K. Cohen, Eugene R. Cochran | 1992-06-16 |
| 4931630 | Apparatus and method for automatically focusing an interference microscope | Donald K. Cohen, Eugene R. Cochran | 1990-06-05 |