Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8820021 | Pre-assembled hip, ridge or rake shingle | Husnu M. Kalkanoglu, Gregory F. Jacobs, Alexander H. Plache | 2014-09-02 |
| 8216407 | Pre-assembled hip, ridge or rake shingle | Husnu M. Kalkanoglu, Gregory F. Jacobs, Alexander H. Plache | 2012-07-10 |