DuVall; Dale R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for DuVall; Dale R..The latest application filed is for "identification system for automated film and order processing including machine and human readable code".
- DuVall; Dale R. - Keller TX
- Duvall; Dale R. - Fort Worth TX
| Patent | Date |
|---|---|
| Identification system for automated film and order processing including machine and human readable code Grant 5,294,950 - DuVall , et al. March 15, 1 | 1994-03-15 |
| Deadbolt assembly having selectable backset Grant 4,976,122 - Doolan , et al. December 11, 1 | 1990-12-11 |
| Acoustic obstruction detector and method Grant 4,706,227 - DuVall , et al. November 10, 1 | 1987-11-10 |
| Device for electrical variable magnification of document image Grant 4,587,621 - DuVall * May 6, 1 | 1986-05-06 |
| Device for electrical variable magnification of document image Grant 4,532,602 - DuVall July 30, 1 | 1985-07-30 |
| Document scanning system Grant 4,429,333 - Davis , et al. January 31, 1 | 1984-01-31 |
| Document scanning apparatus Grant 4,422,100 - DuVall , et al. December 20, 1 | 1983-12-20 |
| Adaptive correlator for video processing Grant 4,162,481 - DuVall July 24, 1 | 1979-07-24 |
| Independent channel automatic gain control for self-scanning photocell array Grant 4,157,533 - DuVall June 5, 1 | 1979-06-05 |
| Single read station acquisition for character recognition Grant 4,013,999 - Erwin , et al. March 22, 1 | 1977-03-22 |
| Dynamic Sample-by-sample Automatic Gain Control Grant 3,872,434 - Duvall , et al. March 18, 1 | 1975-03-18 |
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