Issued Patents All Time
Showing 25 most recent of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6177375 | High activity olefin polymerization catalysts | Ronald S. Shinomoto | 2001-01-23 |
| 6001764 | Olefin polymerization catalysts with specific silica supports | Ronald S. Shinomoto, Reinhard Witt | 1999-12-14 |
| 5895770 | Olefin polymerization catalysts with specific silica supports | Carl A. Gillings, Reinhard Witt | 1999-04-20 |
| 5723402 | Silicas with specific contents of cations as supports for olefin polymerization catalysts | Ronald S. Shinomoto, Carl A. Gillings | 1998-03-03 |
| 5310834 | Mixed chromium catalysts and polymerizations utilizing same | Stanley J. Katzen, Michael W. Lynch, Louis J. Rekers | 1994-05-10 |
| 5198400 | Mixed chromium catalysts and polymerizations utilizing same | Stanley J. Katzen, Michael W. Lynch, Louis J. Rekers | 1993-03-30 |
| 5143883 | Modified silica based catalyst | Charles K. Buehler, Richard W. Fries | 1992-09-01 |
| 5098969 | Propylene polymerization using modified silica based catalyst | Charles K. Buehler, Richard W. Fries | 1992-03-24 |
| 5036147 | Propylene polymerization method | Craig C. Meverden | 1991-07-30 |
| 5006619 | Polymerization catalyst and method | Raymond E. Hoff | 1991-04-09 |
| 4968653 | Propylene polymerization catalyst | Craig C. Meverden | 1990-11-06 |
| 4950631 | Modified silica based catalyst | Charles K. Buehler, Richard W. Fries | 1990-08-21 |
| 4754007 | Copolymerization of ethylene | Michael W. Lynch, Mitsuzo Shida | 1988-06-28 |
| 4578440 | Polymerization catalyst and method | Raymond E. Hoff | 1986-03-25 |
| 4567243 | Polymerization method | Yu-Tang Hwang, Robert A. Dombro | 1986-01-28 |
| 4544646 | Olefin polymerization catalyst and method | Raymond E. Hoff | 1985-10-01 |
| 4530913 | Polymerization catalyst and method | Raymond E. Hoff | 1985-07-23 |
| 4530912 | Polymerization catalyst and method | Raymond E. Hoff | 1985-07-23 |
| 4524141 | Polymerization catalysts and methods | Yu-Tang Hwang, Robert A. Dombro | 1985-06-18 |
| 4510299 | Polymerization method | Michael W. Lynch | 1985-04-09 |
| 4499198 | Polymerization catalysts and methods | Raymond E. Hoff, Michael W. Lynch | 1985-02-12 |
| 4490514 | High-temperature ethylene polymerization and copolymerization using dialuminoxane cocatalysts | Raymond E. Hoff | 1984-12-25 |
| 4478988 | Polymerization method | Raymond E. Hoff | 1984-10-23 |
| 4455386 | Polymerization catalyst | Michael W. Lynch | 1984-06-19 |
| 4383119 | Organomagnesium compounds | Raymond E. Hoff | 1983-05-10 |