Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5250106 | Process for water-repellent impregnation of masonry | Michael Roth | 1993-10-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5250106 | Process for water-repellent impregnation of masonry | Michael Roth | 1993-10-05 |