Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880715 | Imaging system | Man-Chung Tam, Arnold L. Pundsack | 1989-11-14 |
| 4841146 | Self-cleaning scorotron with focused ion beam | Richard F. Bergen | 1989-06-20 |
| 4777904 | Touchdown development apparatus | Richard F. Bergen, Frank T. Lippolis, William H. Wayman | 1988-10-18 |
| 4763141 | Printing apparatus with improved ion focus | Richard F. Bergen | 1988-08-09 |
| 4595852 | Electrostatic generator | — | 1986-06-17 |
| 4591713 | Efficient, self-limiting corona device for positive or negative charging | Richard F. Bergen | 1986-05-27 |
| 4558221 | Self limiting mini-corotron | Richard F. Bergen | 1985-12-10 |
| 4556013 | Screened donor for touchdown development | William M. Schwarz, Kenneth W. Gunther | 1985-12-03 |
| 4533979 | Full-frame flash illumination system | James D. Rees, Jerome E. May | 1985-08-06 |
| 4463363 | Fluid assisted ion projection printing | Richard F. Bergen | 1984-07-31 |
| 4416537 | Cleaning system | — | 1983-11-22 |
| 4345439 | Snowmaking method and apparatus | — | 1982-08-24 |
| 4338727 | Shadowless sundial | — | 1982-07-13 |
| 4302094 | Development method and apparatus | Richard F. Bergen | 1981-11-24 |
| 4289837 | Development method and apparatus | — | 1981-09-15 |
| 4210080 | Imaging method and apparatus | — | 1980-07-01 |
| 4197331 | Novel electrostatic imaging system | Richard F. Bergen | 1980-04-08 |