Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6284934 | Reducing meta content of isomeric mixtures of halo substituted alkylbenzenes | Michael J. Fifolt, William S. Derwin, Arthur H. Morth, Frank P. Bermel, David Y. Tang +2 more | 2001-09-04 |
| 6156945 | Method of making high purity 2,4- and 3,4-dichlorotoluene | Arthur H. Morth, Frank P. Bermel, David Y. Tang, Mark E. Lindrose, William L. Rueter +4 more | 2000-12-05 |
| 6130361 | Reducing meta content of isomeric mixtures of halo substituted toluenes | David Y. Tang, Arthur H. Morth, Mark E. Lindrose, William L. Rueter, Frank P. Bermel | 2000-10-10 |
| 6040477 | Sulfodechlorinating aromatic compounds | Habib Hichri, Christopher C. Sommer | 2000-03-21 |
| 5336788 | Method of making oxydiphthalic anhydride | — | 1994-08-09 |
| 5145971 | Process for the preparation of oxydiphthalic acid and purified oxydiphthalic anhydride from crude oxydiphthalic anhydride | — | 1992-09-08 |