Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7994355 | Metallocene-based chiral phosphine or arsine ligands | Wei-Ping Chen | 2011-08-09 |
| 7906669 | Metallocene-based phosphorus chiral phosphines | Peter McCormack, Chen Weiping | 2011-03-15 |
| 4826977 | Photochromic spiropyran compounds | Harry G. Heller, Stephen N. Oliver, Ian A. Tomlinson | 1989-05-02 |
| 4818096 | Photoreactive lenses with adamantane spiro compounds | Harry G. Heller, Stephen N. Oliver, Jack Brettle, Clive Trundle, Martin W. Baskerville | 1989-04-04 |