Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5220060 | Method for making anhydride from ester using a palladium-containing catalyst system | Seymour J. Lapporte | 1993-06-15 |
| 5008451 | Methylene and oxymethylene bis-ester production | Seymour J. Lapporte | 1991-04-16 |
| 4268572 | Sulfur-based roof shingles | — | 1981-05-19 |