Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D523970 | Watertight decking panel | John Lapp | 2006-06-27 |
| 6643982 | Light weight, hollow structural support column | John Lapp | 2003-11-11 |
| D470038 | Support column base plate | John Lapp | 2003-02-11 |
| 6082019 | Construction aid for determining length and angle of stair railings | John Lapp, Lloyd Glick | 2000-07-04 |