Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7490569 | Covering for floors and/or walls | Gene C. Duff, Robert D. Hutchison | 2009-02-17 |
| 7033661 | Covering for floors and/or walls | Gene C. Duff, Robert D. Hutchison | 2006-04-25 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7490569 | Covering for floors and/or walls | Gene C. Duff, Robert D. Hutchison | 2009-02-17 |
| 7033661 | Covering for floors and/or walls | Gene C. Duff, Robert D. Hutchison | 2006-04-25 |