Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814297 | Strengthened glass article and method | George Halsey Beall, Joseph E. Pierson | 1989-03-21 |
| 4726981 | Strengthened glass articles and method for making | Joseph E. Pierson | 1988-02-23 |
| 4266012 | Color photographic process utilizing polychromatic glass | — | 1981-05-05 |
| 4226628 | Cuprous copper and/or silver halophosphate glasses | Roger F. Bartholomew, William G. Dorfeld, James Murphy, Joseph E. Pierson, Paul A. Tick | 1980-10-07 |