Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7721500 | Multi-layered fire door and method for making the same | Randy Jon Clark, Gary Koepke, Keith Lynn Lewallen, William Robert Transue | 2010-05-25 |
| 7501037 | Methods and systems for the automated manufacture of composite doors | Jon Christopher Stroup, David Patrick Dailey, John Walter, Thomas Reich, Mark John Strocko +1 more | 2009-03-10 |
| 7185468 | Multi-layered fire door and method for making the same | Randy Jon Clark, Gary Koepke, Keith Lynn Lewallen, William Robert Transue | 2007-03-06 |