Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838659 | Liquid crystal displays and fluorescent dyes for use therein | Robert L. Van Ewyk, Alan Mosley, Francis L. Jones, Christopher Blackburn, John Griffiths | 1989-06-13 |
| 4838662 | Light switches utilizing anisotropic emission | Cyril Hilsum, Robert L. Van Ewyk | 1989-06-13 |