Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE37270 | Liquid crystal phase | Ian C. Sage, Reinhard Hittich, Georg Weber | 2001-07-10 |
| 5055224 | Liquid crystal phase | Ian C. Sage | 1991-10-08 |
| 4886621 | Liquid crystal phase | Ian C. Sage, Reinhard Hittich, Georg Weber | 1989-12-12 |