Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842393 | Cuspated lens | Mark Sterling, Robert M. Kiehn, Lowell T. Wood | 1989-06-27 |
| 4834484 | Optical fiber coupler including refractive means for producing an annular beam | Mark Sterling, Robert M. Kiehn, Lowell T. Wood | 1989-05-30 |