Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11739234 | Natural stone sealer compositions | Barry Culkin, Roger Questel, Robert Harrington, Douglas Croteau, Paul Thottathil +2 more | 2023-08-29 |
| 10532956 | Natural stone sealer compositions | Barry Culkin, Roger Questel, Robert Harrington, Douglas Croteau, Paul Thottathil +2 more | 2020-01-14 |