Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5271811 | Process for purifying 2-(4-isobutylphenyl)-propionic acid by vacuum distillation | Siegbert Rittner, Adolf Schmidt, Larry O. Wheeler, Edward G. Zey | 1993-12-21 |
| 5151551 | Method for purification of ibuprofen comprising mixtures | Edward G. Zey, Thomas H. Shockley, Debra A. Ryan | 1992-09-29 |
| 4981995 | Method for producing ibuprofen | Varadaraj Elango, Mark A. Murphy, Brad Smith, Kenneth G. Davenport, Graham N. Mott +1 more | 1991-01-01 |