Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864578 | Scannable laser with integral wavemeter | Gerald H. Williams, James L. Hobart, Thomas F. Johnston, Jr. | 1989-09-05 |
| 4272158 | Broadband optical diode for a ring laser | Thomas F. Johnston, Jr. | 1981-06-09 |
| 4268800 | Vertex-mounted tipping Brewster plate for a ring laser | Thomas F. Johnston, Jr. | 1981-05-19 |