Issued Patents 2011
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8039048 | Algae resistant roofing granules with controlled algaecide leaching rates, algae resistant shingles and process for producing same | Keith C. Hong, Ming Liang Shiao | 2011-10-18 |
| 8015770 | Roof membrane and roof system using the membrane to simulate a standing seam metal roof | Stephen A. Koch | 2011-09-13 |
| 8017224 | Solar heat responsive exterior surface covering | Ming Liang Shiao, Keith C. Hong, Gregory F. Jacobs | 2011-09-13 |
| 7971406 | Shingle layer or shingle having thick appearance | — | 2011-07-05 |
| D633222 | Shingle | Stephen A. Koch, Robert L. Jenkins, Gregory F. Jacobs | 2011-02-22 |
| D633221 | Shingle strip | Stephen A. Koch, Robert L. Jenkins, Gregory F. Jacobs | 2011-02-22 |
| 7861478 | Roof membrane and roof system using the membrane to simulate a standing seam metal roof | Stephen A. Koch | 2011-01-04 |