Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7943700 | Enhanced ESCR of HDPE resins | Donna J. Crowther, Zerong Lin, Arnold Lustiger, Jeanne Marie MacDonald, Thomas T. Sun | 2011-05-17 |
| 7691955 | Catalyst activation and resins therefrom | Scott Roger, Thomas W. Towles, Anthony N. Speca | 2010-04-06 |
| 7632901 | Catalyst system and process | Zerong Lin, Anthony N. Speca, James Kendrick, Scott Roger | 2009-12-15 |
| 7384885 | Catalyst activation and resins therefrom | Scott Roger, Thomas W. Towles, Anthony N. Speca | 2008-06-10 |
| 7381778 | Method of preparing a treated support | Anthony N. Speca | 2008-06-03 |
| 7375169 | Method for catalyst preparation and improved polyethylene blow molding resin | Edward F. Smith, Anthony N. Speca, Thomas W. Towles | 2008-05-20 |
| 7262259 | Method of preparing a treated support | Anthony N. Speca | 2007-08-28 |
| 7192901 | Method of preparing a treated support | Anthony N. Speca | 2007-03-20 |
| 6921798 | Polymerization process | James Kendrick, Scott Roger, Zerong Lin, Anthony N. Speca | 2005-07-26 |
| 6809057 | Chromium compounds and olefin polymerization processes utilizing them | Zerong Lin, Robert T. Li, Anthony N. Speca, David H. McConville | 2004-10-26 |
| 5310834 | Mixed chromium catalysts and polymerizations utilizing same | Thomas J. Pullukat, Michael W. Lynch, Louis J. Rekers | 1994-05-10 |
| 5198400 | Mixed chromium catalysts and polymerizations utilizing same | Thomas J. Pullukat, Michael W. Lynch, Louis J. Rekers | 1993-03-30 |
| 5081089 | Chromium catalyst compositions and polymerization utilizing same | Louis J. Rekers | 1992-01-14 |
| 4981927 | Chromium catalyst compositions and polymerization utilizing same | Louis J. Rekers | 1991-01-01 |
| 4593079 | Resin rheology control process and catalyst therefor | Louis J. Rekers | 1986-06-03 |
| 4496699 | Process for polymerizing high melt index olefins and polymerization catalysts used therefore | Louis J. Rekers | 1985-01-29 |
| 4404340 | Process for polymerizing olefins in the presence of a titanium-phosphorus-chromium catalyst | Anthony N. Speca, Louis J. Rekers | 1983-09-13 |
| 4379075 | Process for polymerizing high melt index olefins and polymerization catalysts used therefore | Louis J. Rekers | 1983-04-05 |
| 4328124 | Olefin polymerization catalyst and process | Anthony N. Speca, Louis J. Rekers | 1982-05-04 |
| 4312786 | Process for polymerizing olefins and polymerization catalysts used therefor | Louis J. Rekers | 1982-01-26 |
| 4290914 | Catalytic materials as for olefin polymerization | Louis J. Rekers | 1981-09-22 |
| 4260706 | Olefin polymerization catalyst | Louis J. Rekers, Jerome H. Krekeler | 1981-04-07 |
| 4252926 | Process for polymerizing olefins and polymerization catalysts used therefor | Louis J. Rekers | 1981-02-24 |
| 4234453 | Olefin polymerization catalyst | Louis J. Rekers, Jerome H. Krekeler | 1980-11-18 |
| 4234709 | Catalyst composition, method for producing same and method for polymerization of 1-olefins with same | Louis J. Rekers | 1980-11-18 |