Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6844399 | Sulfonated substantially random interpolymers, blends therewith and articles made therefrom | Yunwa W. Cheung, Stephen F. Hahn, James C. Stevens, Francis J. Timmers, Thoi H. Ho +1 more | 2005-01-18 |
| 6512049 | Sulfonated substantially random interpolymers, blends therewith and articles made therefrom | Yunwa W. Cheung, Stephen F. Hahn, James C. Stevens, Francis J. Timmers, Robert H. Terbrueggen +1 more | 2003-01-28 |
| 6479594 | Sulfonated substantially random interpolymers, blends therewith and articles made therefrom | Yunwa W. Cheung, Stephen F. Hahn, James C. Stevens, Francis J. Timmers, Thoi H. Ho +1 more | 2002-11-12 |
| 5646084 | Polymerization process using diene containing catalysts | Jasson T. Patton, David D. Devore, Franis J. Timmers, Jorge Soto, David R. Wilson | 1997-07-08 |
| 5543480 | Polymerization process using diene containing catalysts | Jasson T. Patton, David D. Devore, Francis J. Timmers, Jorge Soto, David R. Wilson | 1996-08-06 |
| 5264646 | Process for preparing vinylically-unsaturated compounds | Robert A. DeVries, Hughie R. Frick, deceased, Bonnie Frick | 1993-11-23 |
| 5015749 | Preparation of polyhydrocarbyl-aluminoxanes | Dennis A. Hucul, Richard E. Campbell, Jr. | 1991-05-14 |
| 4990716 | Preparation of diphenylmethanes | Paul D. Williams | 1991-02-05 |
| 4808680 | Polymerization of vinyl aromatic monomers using cyclopentadienyl zirconium catalysts | Richard E. Campbell, Jr. | 1989-02-28 |
| 4774301 | Zirconium containing catalysts and method of use | Richard E. Campbell, Jr. | 1988-09-27 |
| 4659685 | Heterogeneous organometallic catalysts containing a supported titanium compound and at least one other supported organometallic compound | William Monroe Coleman, III, Richard E. Campbell, Jr., Mark S. Delaney | 1987-04-21 |