Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6244333 | Corrugated folded plate heat exchanger | Charles John Bergh, George Alexander | 2001-06-12 |
| 6186223 | Corrugated folded plate heat exchanger | Charles John Bergh | 2001-02-13 |