Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6148562 | Soundproof spring and cover for window jamb liners | Ivan L. Stark, James A. Hylton, James S. Hylton, James Gibbs, Jack L. White +1 more | 2000-11-21 |
| 6108991 | Exterior wall assembly | Joseph R. Hagan, Fred H. Hansen | 2000-08-29 |
| 5836135 | Drainage track | Joseph R. Hagan, Fred H. Hansen | 1998-11-17 |