Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8309169 | Variable thickness shingle | Sanjay Mansukhani | 2012-11-13 |
| 7776391 | Variable thickness shingles | Sanjay Mansukhani | 2010-08-17 |
| 7765763 | Pleated roofing membrane and roofing shingle system | Edward R. Harrington, Lawrence J. Grubka | 2010-08-03 |