Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4454520 | Electrographic recorder with enhanced writing speed | Boyce D. Braschler, Roger D. Erickson, Charles J. O'Toole, Jr. | 1984-06-12 |
| 4415913 | Gray tone recorder | — | 1983-11-15 |
| 4403225 | Multistylus recording system | Edward R. Bade | 1983-09-06 |
| 4343010 | Recorder control circuit for suppressing incipient arcing at the heating electrodes | Richard Denny | 1982-08-03 |
| 4317018 | Fail safe control circuit | Richard Denny | 1982-02-23 |
| 4300074 | Video coupling system | Robert Humphrey | 1981-11-10 |