Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4666989 | Polybutylene modified masterbatches for impact resistant polypropylene | J. Douglas McCullouch, Jr. | 1987-05-19 |
| 4311807 | Polybutylene modified masterbatches for impact resistant polypropylene | J. Douglas McCullough, Jr. | 1982-01-19 |