Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10067334 | Optical magnifier | — | 2018-09-04 |
| 9904032 | Macro accessory for telescope | — | 2018-02-27 |
| 5563586 | Apparatus for limiting control of electrical equipment | Matthew C. Baum, Edmund E. Sherman | 1996-10-08 |
| 4749271 | Finder scope for use with astronomical telescopes | — | 1988-06-07 |
| 4747675 | Ultra wide-angle eyepiece | — | 1988-05-31 |
| 4525035 | Wide angle eyepiece | — | 1985-06-25 |
| 4482217 | Plossl type eyepiece for use in astronomical instruments | — | 1984-11-13 |
| 4400065 | Multi-purpose telescope | — | 1983-08-23 |
| 4286844 | Ultrawide angle flat field eyepiece | — | 1981-09-01 |