Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D452920 | Roof tile | Alfonso V. Alvarez, Woods W. Burnett, Walter Arthur Schreifels, Joseph Edward Smith, Patrick Gene Sullivan | 2002-01-08 |
| 6247284 | Roof tile design and construction | Alfonso V. Alvarez, Woods W. Burnett, Walter Arthur Schreifels, Joseph Edward Smith, Patrick Gene Sullivan | 2001-06-19 |
| D441881 | Roof tile having simulated wood appearance | — | 2001-05-08 |
| 6205742 | Method and apparatus for manufacturing and installing roof tiles | — | 2001-03-27 |
| 6105328 | Method and apparatus for manufacturing and installing roof tiles having improved strength and stacking features | — | 2000-08-22 |
| 5993551 | Roof tile and method and apparatus for providing same | — | 1999-11-30 |
| 5974756 | Roof tile design and construction | Alfonso V. Alvarez, Woods W. Burnett, Walter Arthur Schreifels, Joseph Edward Smith, Patrick Gene Sullivan | 1999-11-02 |
| D411316 | Roof tile | Alfonso V. Alvarez, Woods W. Burnett, Walter Arthur Schreifels, Joseph Edward Smith, Patrick Gene Sullivan | 1999-06-22 |
| D402064 | Roofing tile | — | 1998-12-01 |