Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5022161 | Plate fin collar gauging apparatus | Kenneth P. Gray | 1991-06-11 |
| 4858305 | Single station tension hairpin tube expander | Kenneth P. Gray, Bruce J. Poplawski, Daniel P. Gaffaney, Ross A. Moyer | 1989-08-22 |
| 4850101 | Dual-station flexible hairpin tube expansion apparatus | Bruce J. Poplawski | 1989-07-25 |