Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5188876 | Surface covering with inorganic wear layer | Robert D. Hensel, Leonard N. Ray, Jr., Jeffrey S. Ross, Jerome D. Wisnosky | 1993-02-23 |
| 5077112 | Floor covering with inorganic wear layer | Robert D. Hensel, Leonard N. Ray, Jr., Jerome D. Wisnosky | 1991-12-31 |