Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12258761 | Roofing system having tapered insulation panels, a roof assembly kit and a method of installing thereof | James Willits, Andrew Seymour, Mark Lienemann, David Scott, Walter Brown +1 more | 2025-03-25 |
| 12104382 | Roofing drip edge device and a method of installing a roofing drip edge device | Randle Brown, James Willits, Mark Lienemann | 2024-10-01 |
| 9487953 | Vacuum insulated panel | William J. Grieco | 2016-11-08 |
| 9334651 | System and method for attaching shingles to a roof | Lawrence J. Grubka, Christopher C. Freidner | 2016-05-10 |
| 8557366 | Roofing shingle including sheet as headlap | Edward R. Harrington, Larry Grubka, Yihsein H. Teng, Jill Krueger, Marc Kuttler +2 more | 2013-10-15 |
| 7827753 | Lofted mat for shingles | Anthony L. Rockwell | 2010-11-09 |