Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9968920 | Strong acid catalyst composition | Daryl J. Gisch, William I. Harris, Marvin K. Tegen, Robert J. Olsen, Jose Antonio Trejo-O'Reilly | 2018-05-15 |
| 8273799 | Amination of vinyl aromatic polymers with tertiary amines | William I. Harris, Daryl J. Gisch, Marvin H. Tegen, James A. Jagodzinski, David Charles McDonald | 2012-09-25 |