Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8079189 | Structure system of concrete building for self-heat insulation | Xinfu Chen | 2011-12-20 |
| 7913469 | Concrete load-bearing wall with compound heat-insulating layer | Xinfu Chen | 2011-03-29 |
| 7912723 | Talking book | — | 2011-03-22 |
| 7882669 | Composite concrete shear wall for heat insulation | Xinfu Chen | 2011-02-08 |