Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5955537 | Continuous polymerization process | Howard A. Colvin, Ronald D. Fiedler | 1999-09-21 |
| 5837756 | Polymer for asphalt cement modification | Howard A. Colvin, Daniel Frederick Klemmensen | 1998-11-17 |