Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6174403 | Muli-layered and colored shingle and method of making same | Edward C. Steiner, Jr., Shelby L. Freeman, Walter F. Becker | 2001-01-16 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6174403 | Muli-layered and colored shingle and method of making same | Edward C. Steiner, Jr., Shelby L. Freeman, Walter F. Becker | 2001-01-16 |