Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6333811 | All-reflective zoom optical imaging system | Richard Wientzen | 2001-12-25 |
| 6229595 | Lithography system and method with mask image enlargement | William G. McKinley, Gerard M. Perron | 2001-05-08 |
| 5072104 | Achromatic null lens | — | 1991-12-10 |
| 4958931 | System utilizing an achromatic null lens for correcting aberrations in a spherical wavefront | — | 1990-09-25 |
| 4198125 | Method and apparatus for obtaining the doppler transform of a signal | Richard H. Hudgin, Peter Nisenson | 1980-04-15 |