Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4690509 | Waveforms on a liquid crystal display | — | 1987-09-01 |
| 4666099 | Apparatus for dispensing sheet material | Louis S. Hoffman, Ralph DeVito, Brian R. Langille, Richard D. Watkins, Charles B. Sanders +2 more | 1987-05-19 |
| 4658188 | Apparatus and method for scanning a flat screen cathode ray tube | — | 1987-04-14 |
| 4641923 | Field sensitive optical displays with electrodes with high and low impedance portions | Walter J. Betancourt, Louis S. Hoffman | 1987-02-10 |
| 4493531 | Field sensitive optical displays, generation of fields therefor and scanning thereof | Walter J. Betancourt, Louis S. Hoffman | 1985-01-15 |