Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4788382 | Duplex glass preforms for hermetic glass-to-metal compression sealing | John E. Ahearn, Dennis Girard, Richard A. Koepke, Robert M. O'Hern, James K. Schmidt +1 more | 1988-11-29 |
| 4716082 | Duplex glass preforms for hermetic glass-to-metal sealing | John E. Ahearn, Dennis Girard, Richard A. Koepke, James K. Schmidt, C. Dodd Manon | 1987-12-29 |