Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4386133 | Coated beads with macromonomer-styrene polymerizate coating | David R. Warfel, Alvin R. Ingram | 1983-05-31 |
| 4333970 | Process for producing coated beads with macromonomer-styrene polymerizate coating | David R. Warfel, Alvin R. Ingram | 1982-06-08 |
| 4307134 | Process for producing plasticized elastomer-styrene coated beads | Ralph Milkovich, David R. Warfel, Alvin R. Ingram | 1981-12-22 |
| 4269871 | Antilumping expandable styrene polymers | William J. Poole, Alvin R. Ingram | 1981-05-26 |