Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878948 | Water resistance additive for cementitious compositions | — | 1989-11-07 |
VS
Virendra V. Shah
Overall (1989): #46,393 of 140,708Top 35%
1
Patents 1989