Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6797219 | Method for manufacture of floor panels | Nicholas M. Vander Wal, John C. Duba, Jr., Kenneth J. Knister, David J. Levitt | 2004-09-28 |
| 6637161 | Floor system | Mark A. Buchalter, Arthur Y. Tsubaki | 2003-10-28 |