Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8851790 | Watertight hatch | — | 2014-10-07 |
| 7356968 | Polymer composite basement door | Lawrence R. Jones | 2008-04-15 |
| 6931793 | Roof scuttle safety railing system | Donald Barker, Kenneth R. Gleason, James G. Gleason | 2005-08-23 |
| 6799395 | Horizontal door lift | Gary Dabrowski | 2004-10-05 |
| 6260305 | Gasket system for a horizontal door | — | 2001-07-17 |
| 6041553 | Anchorage system for a horizontal door | Dominic T. DeConciliis | 2000-03-28 |