Issued Patents 2019
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D867623 | Shingle | Lawrence J. Grubka, Christina Marie Wise | 2019-11-19 |
| 10370853 | Hip and ridge/starter shingle combination | Lawrence J. Grubka | 2019-08-06 |
| D843602 | Shingle | Lawrence J. Grubka, Christina Marie Wise | 2019-03-19 |
| D843603 | Shingle | Lawrence J. Grubka, Christina Marie Wise | 2019-03-19 |
| D843604 | Shingle | Lawrence J. Grubka, Christina Marie Wise | 2019-03-19 |