Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6697170 | Devices and methods for offset and similar printing systems | Arnold Hoffman | 2004-02-24 |
| 6408136 | Zoom camera obscura | — | 2002-06-18 |
| 6163382 | Devices and methods for offset and similar printing systems | Arnold Hoffman | 2000-12-19 |
| 5793500 | Devices and methods for offset and similar printing systems | Arnold Hoffman | 1998-08-11 |
| 5283140 | Halftone image screening array of parallel lines with effective maximum and minimum optical density and method of generating a halftone image utilizing the screening array | Arnold Hoffman | 1994-02-01 |
| 5034767 | Development system | Arnold Hoffman | 1991-07-23 |
| 4598040 | Photographic system and process | Arnold Hoffman | 1986-07-01 |