Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883824 | Modified phenolic foam catalysts and method | James Lunt, Edwin J. MacPherson | 1989-11-28 |
| 4882364 | Process for manufacturing closed cell phenolic foams | Teresa M. Kyle, Edwin J. MacPherson | 1989-11-21 |