Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6035926 | Rotary, regenerative heat exchanger having hydraulic motor motion | — | 2000-03-14 |
| 5911270 | Rotary regenerative heat exchanger | — | 1999-06-15 |
| 5845700 | Rotary regenerative heat exchanger | Kurt Karlsson | 1998-12-08 |