Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835874 | Driven marking system for creating a plurality of varied line designs | Steven Ellman, Fred Ellman, Julius Ellman | 1989-06-06 |
| D298598 | Combined play and feeding tray | Steven Ellman, Fred Ellman, Julius Ellman | 1988-11-22 |
| 4303240 | Moving block game | Steven Ellman, Fredric Ellman, Julius Ellman | 1981-12-01 |