Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11035128 | Exterior cladding panels and methods for installing them | Stephen W. Steffes, David J. Stucky, Robert D. Shaw | 2021-06-15 |
| 11007690 | System, method and article for siding corner | Stephen W. Steffes | 2021-05-18 |
| 10934719 | Siding panel end plug and method of installation | Stephen W. Steffes | 2021-03-02 |