Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6046343 | Prevention of catalyst attrition and tar formation in manufacture of maleic anhydride | Michael J. Mummey, Robert A. Keppel | 2000-04-04 |
| 5877331 | Prevention of catalyst attrition and tar formation in manufacture of maleic anhydride | Michael J. Mummey, Robert A. Keppel | 1999-03-02 |