Wirtz; John S.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Wirtz; John S..The latest application filed is for "low cost color scanner".
- Wirtz; John S. - Henrietta NY
- Wirtz; John S. - Rochester NY
| Patent | Date |
|---|---|
| Low cost color scanner Grant 4,899,214 - Robbins , et al. February 6, 1 | 1990-02-06 |
| Method and apparatus for coding photographic materials Grant 4,783,672 - Wirtz , et al. November 8, 1 | 1988-11-08 |
| System for digitally controlling exposure time of camera Grant 3,992,098 - Wirtz November 16, 1 | 1976-11-16 |
| System For Detecting A Change In Light Intensity Grant 3,812,372 - Wirtz , et al. May 21, 1 | 1974-05-21 |
| Fluorescent-lamp-dimming Circuit Grant 3,614,527 - Wirtz October 19, 1 | 1971-10-19 |
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