Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6590108 | Methods for the preparation of dianhydrides | Roy Ray Odle, William J. Swatos, Michael J. Vollmer | 2003-07-08 |
| 6576770 | Preparation of substituted phthalic anhydrides and substituted phthalimides | Roy Ray Odle, Philip L. Angermeier | 2003-06-10 |
| 6570038 | Aqueous hexasubstituted guanidinium chlorides and methods for their preparation and use | Joseph John Caringi, Peter D. Phelps, Daniel J. Brunelle | 2003-05-27 |
| 6528663 | Methods for the preparation of 4-chlorophthalic anhydride | Roy Ray Odle | 2003-03-04 |