Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4560646 | Protected developing agents | William E. Long, Terence C. Webb, Stephen Postle, Kenneth M. McCombe, Martin C. Grossel | 1985-12-24 |
| 4540785 | Substituted hydroquinones | — | 1985-09-10 |
| 4526908 | Polyol blends of phthalate/trimellitate esters for polyurethane-polyisocyanurate foams | George Magnus, Bonnie Keyes | 1985-07-02 |
| 4446216 | Photographic material | Stephen Postle, William E. Long | 1984-05-01 |
| 4268134 | Lightweight laminated photochromic lenses | Suresh T. Gulati, Anton A. Spycher | 1981-05-19 |