Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8013173 | Method of purifying dianhydrides, the dianhydrides formed thereby, and polyetherimides formed therefrom | Vijay Gopalakrishnan, Lioba Maria Kloppenburg, Matt Kuhlman, Roy Ray Odle, Eric James Pressman +2 more | 2011-09-06 |
| 7863463 | Method of purifying dianhydrides | Eric James Pressman, Albert Santo Stella, Lioba Maria Kloppenburg, Lee H. Bergman | 2011-01-04 |