Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858242 | Unitary solid-state laser | William E. Langert, Joseph J. Barrett | 1989-08-15 |
| 4835786 | Unitary solid-state laser | Robert C. Morris, Norman G. Schroeder, Michael L. Shand, Joseph J. Barrett | 1989-05-30 |