Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4651811 | Heat exchanging body | Martin Frauenfeld | 1987-03-24 |
| 4577678 | Storage material for heat transfer | Martin Frauenfeld | 1986-03-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4651811 | Heat exchanging body | Martin Frauenfeld | 1987-03-24 |
| 4577678 | Storage material for heat transfer | Martin Frauenfeld | 1986-03-25 |