Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877671 | Reducing shrinkage of phenolic foam composites | Malcolm J. Stagg, Sunil Vidyarthi | 1989-10-31 |
| 4861642 | Reinforcement of phenolic foams composite | Malcolm J. Stagg, Sunil Vidyarthi | 1989-08-29 |