Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5650000 | Polyphenolic vegetable extract/surfactant compositions as universal bitumen/water emulsifiers | Robert S. Custer | 1997-07-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5650000 | Polyphenolic vegetable extract/surfactant compositions as universal bitumen/water emulsifiers | Robert S. Custer | 1997-07-22 |