Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878950 | Bitumen composition | Andrew Halasz, Giuseppe Spinelli | 1989-11-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878950 | Bitumen composition | Andrew Halasz, Giuseppe Spinelli | 1989-11-07 |