Issued Patents All Time
Showing 26–50 of 64 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5229477 | Process for producing ethylene-propylene-diene monomer terpolymer | Larry L. Sterna | 1993-07-20 |
| 5185410 | Olefin polymerization catalyst | — | 1993-02-09 |
| 5164352 | Process for the production of elastomeric, primarily isotactic polyolefins and catalysts for use in said process | Donald F. Haas | 1992-11-17 |
| 5162277 | Olefin polymerization catalyst | — | 1992-11-10 |
| 5151399 | Olefin polymerization catalyst | — | 1992-09-29 |
| 5146028 | Olefin polymerization catalyst and process of polymerization | — | 1992-09-08 |
| 5141910 | Olefin polymerization catalyst | — | 1992-08-25 |
| 5134209 | Process of producing ethylene-propylene rubbery copolymer | Larry L. Sterna | 1992-07-28 |
| 5132263 | Olefin polymerization catalyst | — | 1992-07-21 |
| 5124298 | Olefin polymerization catalyst | — | 1992-06-23 |
| 5122494 | Olefin polymerization catalyst | — | 1992-06-16 |
| 5118649 | Process for the production of elastomeric primarily isotactic polyolefins and catalysts for use in said process | — | 1992-06-02 |
| 5118768 | Process for the production of elastomeric, primarily isotactic polyolefins and catalysts for use in said process | Donald F. Haas | 1992-06-02 |
| 5118767 | Process for producing mildly elastomeric primarily isotatic polypropylene and poly-1-butene | — | 1992-06-02 |
| 5106806 | Olefin polymerization catalyst | — | 1992-04-21 |
| 5089573 | Process for the production of elastomeric, primarily isotactic polyolefins and catalysts for use in said process | — | 1992-02-18 |
| 5082907 | Olefin polymerization catalyst | — | 1992-01-21 |
| 5077357 | Olefin polymerization catalyst | — | 1991-12-31 |
| 5066737 | Olefin polymerization catalyst | — | 1991-11-19 |
| 5034361 | Catalyst precursor production | Daniel P. Zilker, Jr., John C. Chadwick | 1991-07-23 |
| H860 | Method for polymerizing alpha olefins | — | 1990-12-04 |
| 4971936 | Catalyst component for making primarily isotactic elastomeric polypropylene or polybutene | Stanley E. Wilson | 1990-11-20 |
| 4959336 | Silicate-modified magnesium ethoxide polymerization catalysts | — | 1990-09-25 |
| 4948770 | Method for crystallizing magnesium chloride and method for using in a catalyst composition | — | 1990-08-14 |
| 4914069 | Preparation of olefin polymerization catalyst component | Steven M. Nestlerode | 1990-04-03 |