Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7815790 | Upgrade of visbroken residua products by ultrafiltration | Daniel P. Leta, Leo D. Brown, David T. Ferrughelli, Stephen M. Cundy, MaryKathryn Lee +1 more | 2010-10-19 | $87,946,000 |