Issued Patents All Time
Showing 151–157 of 157 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4643561 | Control system for an electrophotographic printing machine | — | 1987-02-17 |
| 4614165 | Extended life development system | Cyril G. Edmunds, Steven C. Hart | 1986-09-30 |
| 4611900 | Apparatus for sensing the presence of toner particles | — | 1986-09-16 |
| 4603961 | Development system | — | 1986-08-05 |
| 4565438 | Development system using electrically field dependent developer material | — | 1986-01-21 |
| 4492179 | Control system for regulating the dispensing of marking particles in an electrophotographic printing machine | Shahid Haque, Alfred M. Loeb, Henry R. Till | 1985-01-08 |
| 4466732 | Development system having a bounded electrical bias | — | 1984-08-21 |