Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5669952 | Pressure forming of glass sheets | George R. Claassen, Irvin A. Wilson, David B. Rayburn, John L. McLaughlin, Rudolph A. Karlo | 1997-09-23 |
| 5649990 | Combination flexible/rigid ring mold | Robert G. Frank, Samuel E. Behanna, Rudolph A. Karlo | 1997-07-22 |