Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5321105 | Polymerization process using a bimodal silica gel as a catalyst support | Roger D. Laib | 1994-06-14 |
| 5310834 | Mixed chromium catalysts and polymerizations utilizing same | Stanley J. Katzen, Thomas J. Pullukat, Michael W. Lynch | 1994-05-10 |
| 5231066 | Bimodal silica gel, its preparation and use as a catalyst support | Roger D. Laib | 1993-07-27 |
| 5198400 | Mixed chromium catalysts and polymerizations utilizing same | Stanley J. Katzen, Thomas J. Pullukat, Michael W. Lynch | 1993-03-30 |
| 5081089 | Chromium catalyst compositions and polymerization utilizing same | Stanley J. Katzen | 1992-01-14 |
| 4981927 | Chromium catalyst compositions and polymerization utilizing same | Stanley J. Katzen | 1991-01-01 |
| 4847339 | Process for preparing interpolymers of ethylene, vinyl acetate, and reactive halogen-containing monomers | Manfred Heimberg | 1989-07-11 |
| 4656151 | Intermetallic compound | Javan Shelly | 1987-04-07 |
| 4649128 | Deactivator for olefin polymerization catalyst | Anthony N. Speca, Harry W. Mayhew | 1987-03-10 |
| 4593079 | Resin rheology control process and catalyst therefor | Stanley J. Katzen | 1986-06-03 |
| 4540755 | Inclusion of oxygen in the polymerization of olefins | Harry W. Mayhew, Richard J. French | 1985-09-10 |
| 4496699 | Process for polymerizing high melt index olefins and polymerization catalysts used therefore | Stanley J. Katzen | 1985-01-29 |
| 4472531 | Polymerization catalyst and method of preparing the same | Anthony N. Speca | 1984-09-18 |
| 4404340 | Process for polymerizing olefins in the presence of a titanium-phosphorus-chromium catalyst | Anthony N. Speca, Stanley J. Katzen | 1983-09-13 |
| 4379075 | Process for polymerizing high melt index olefins and polymerization catalysts used therefore | Stanley J. Katzen | 1983-04-05 |
| 4356294 | Production of polyolefins having improved ESCR | Richard J. French, Harry W. Mayhew | 1982-10-26 |
| 4328124 | Olefin polymerization catalyst and process | Anthony N. Speca, Stanley J. Katzen | 1982-05-04 |
| 4312786 | Process for polymerizing olefins and polymerization catalysts used therefor | Stanley J. Katzen | 1982-01-26 |
| 4290914 | Catalytic materials as for olefin polymerization | Stanley J. Katzen | 1981-09-22 |
| 4276399 | Supported catalyst from chromium for olefin polymerization | Anthony N. Speca | 1981-06-30 |
| 4267090 | Process for preparing vinyl acetate-ethylene copolymer latices | Manfred Heimberg | 1981-05-12 |
| 4260706 | Olefin polymerization catalyst | Stanley J. Katzen, Jerome H. Krekeler | 1981-04-07 |
| 4252926 | Process for polymerizing olefins and polymerization catalysts used therefor | Stanley J. Katzen | 1981-02-24 |
| 4234709 | Catalyst composition, method for producing same and method for polymerization of 1-olefins with same | Stanley J. Katzen | 1980-11-18 |
| 4234453 | Olefin polymerization catalyst | Stanley J. Katzen, Jerome H. Krekeler | 1980-11-18 |