Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878719 | Automotive wheel covers with spatially stabilized images | John E. Wreede, Richard B. Upper | 1989-11-07 |
| 4853306 | Method and apparatus for dehydrating dichromatic gelatin holograms | John E. Wreede | 1989-08-01 |
| 4826290 | Method of producing stable holograms in dichromatic gelatin | John E. Wreede | 1989-05-02 |