Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4984626 | Embossed vortex generator enhanced plate fin | Jack Leon Esformes | 1991-01-15 |
| 4633941 | Slit fin coil and the method of making coils | John R. McManus | 1987-01-06 |
| 4619024 | Method of making coils | John R. McManus | 1986-10-28 |