Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4630674 | Plate heat exchanger | — | 1986-12-23 |
| 4489778 | Plate heat exchanger | — | 1984-12-25 |
| 4376460 | Plate heat exchanger | — | 1983-03-15 |
| 4307779 | Plate heat exchanger | Hans Johansson, Kaj Rissler, Dag Rynell, Nils Stadmark | 1981-12-29 |
| 4303123 | Plate heat exchanger | — | 1981-12-01 |
| 4301864 | Plate heat exchanger | Toivelemb Kivikas, Kaj Rissler, Dag Rynell | 1981-11-24 |