Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5692491 | Unglazed transpired solar collector having a low thermal-conductance absorber | Craig B. Christensen, Keith Gawlik | 1997-12-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5692491 | Unglazed transpired solar collector having a low thermal-conductance absorber | Craig B. Christensen, Keith Gawlik | 1997-12-02 |