Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5644881 | Window frame with integral connectors | — | 1997-07-08 |
| D350400 | Door light | David A. De Block | 1994-09-06 |
| 5249403 | Window frame connector | K. William Kennedy | 1993-10-05 |
| 5133168 | Window frame connector | K. William Kennedy | 1992-07-28 |