Patents per Year
Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4462028 | Access control logic for video terminal display memory | Joseph L. Ryan, Elias Safdie, Richard R. Watkins | 1984-07-24 | $2,678,000 |
| 4418343 | CRT Refresh memory system | Joseph L. Ryan, Elias Safdie, Richard R. Watkins | 1983-11-29 | $6,230,000 |
| 4263648 | Split system bus cycle for direct memory access of peripherals in a cathode ray tube display system | John P. Stafford, Richard A. Slater, Joseph L. Ryan | 1981-04-21 | $12,720,000 |
| 4225942 | Daisy chaining of device interrupts in a cathode ray tube device | Joseph L. Ryan, Minoru Inoshita, Gerald N. Winfrey | 1980-09-30 | $1,769,000 |