Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10870993 | Individual polymer masonry panels, and methods of manufacture and installation | Stephen W. Steffes | 2020-12-22 |
| 10604944 | Single panel siding product | Stephen W. Steffes, David J. Stucky | 2020-03-31 |