| Classification | Number | Url | PMD | Priority | Assignee | Assignee Loc | Inventor(s) | Inventor Loc(s) | Filing Date | Issued Date |
| classification-0 | 5,692,491 | Unglazed transpired solar collector having a low thermal-conductance absorber | 5,692,491 | No | Midwest Research Institute | Kansas City, MO | Christensen; Craig B.:Kutscher; Charles F.:Gawlik; Keith M. | Boulder, CO:Golden, CO:Boulder, CO | April 19, 1996 | December 2, 1997 |