Inventor · disambiguated record
Stanley J. Katzen
Also filed as: KATZEN STANLEY J · KREKELER JEROME H
32 granted patents·2 pending applications·512 citations·filing 1974–2008
97Inventor score
Top patents by PatentIndex Score
34 records- 0197US7262259B2Method of preparing a treated supportEXXONMOBIL CHEM PATENTS INC·Filed 2007·Granted Aug 28, 2007·36 cites·23 claims
- 0296US7375169B1Method for catalyst preparation and improved polyethylene blow molding resinEXXONMOBIL CHEM PATENTS INC·Filed 2007·Granted May 20, 2008·37 cites·20 claims
- 0391US7384885B2Catalyst activation and resins therefromEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Jun 10, 2008·13 cites·30 claims
- 0490US3984351AOlefin polymerization catalystNAT PETRO CHEM·Filed 1975·Granted Oct 5, 1976·43 cites·21 claims
- 0589US5198400AMixed chromium catalysts and polymerizations utilizing sameQUANTUM CHEM CORP·Filed 1991·Granted Mar 30, 1993·58 cites·30 claims
- 0689US3985676ACatalyst composition and method for the preparation thereofNAT PETRO CHEM·Filed 1974·Granted Oct 12, 1976·41 cites·16 claims
- 0785US7943700B2Enhanced ESCR of HDPE resinsEXXONMOBIL CHEM PATENTS INC·Filed 2006·Granted May 17, 2011·7 cites·46 claims
- 0884US5310834AMixed chromium catalysts and polymerizations utilizing sameQUANTUM CHEM CORP·Filed 1992·Granted May 10, 1994·42 cites·21 claims
- 0984US4981927AChromium catalyst compositions and polymerization utilizing sameNAT DISTILLERS CHEM CORP·Filed 1989·Granted Jan 1, 1991·35 cites·8 claims
- 1083US4049896AOlefin polymerization catalystNAT PETRO CHEM·Filed 1976·Granted Sep 20, 1977·26 cites·3 claims
- 1182US7381778B2Method of preparing a treated supportEXXONMOBIL CHEM PATENTS INC·Filed 2006·Granted Jun 3, 2008·5 cites·24 claims
- 1281US5081089AChromium catalyst compositions and polymerization utilizing sameNAT DISTILLERS CHEM CORP·Filed 1990·Granted Jan 14, 1992·34 cites·13 claims
- 1376US6921798B2Polymerization processEXXONMOBIL CHEM PATENTS INC·Filed 2003·Granted Jul 26, 2005·13 cites·16 claims
- 1471US4290914ACatalytic materials as for olefin polymerizationNAT PETRO CHEM·Filed 1980·Granted Sep 22, 1981·18 cites·2 claims
- 1570US4100104ACatalytic materials as for olefin polymerizationNAT PETRO CHEM·Filed 1977·Granted Jul 11, 1978·12 cites·10 claims
- 1668US7192901B2Method of preparing a treated supportEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Mar 20, 2007·1 cites·17 claims
- 1768US4593079AResin rheology control process and catalyst thereforNAT DISTILLERS CHEM CORP·Filed 1982·Granted Jun 3, 1986·15 cites·2 claims
- 1867US6809057B2Chromium compounds and olefin polymerization processes utilizing themEXXONMOBIL CHEM PATENTS INC·Filed 2003·Granted Oct 26, 2004·7 cites·20 claims
- 1965US4192775AOlefin polymerization catalystNAT PETRO CHEM·Filed 1978·Granted Mar 11, 1980·11 cites·12 claims
- 2063US4404340AProcess for polymerizing olefins in the presence of a titanium-phosphorus-chromium catalystNAT PETRO CHEM·Filed 1982·Granted Sep 13, 1983·12 cites·11 claims
- 2159US7691955B2Catalyst activation and resins therefromEXXONMOBIL CHEM PATENTS INC·Filed 2008·Granted Apr 6, 2010·0 cites·12 claims
- 2259US4234453AOlefin polymerization catalystNAT PETRO CHEM·Filed 1976·Granted Nov 18, 1980·9 cites·13 claims
- 2354US4260706AOlefin polymerization catalystNAT PETRO CHEM·Filed 1979·Granted Apr 7, 1981·7 cites·6 claims
- 2451US4328124AOlefin polymerization catalyst and processNAT PETRO CHEM·Filed 1981·Granted May 4, 1982·7 cites·11 claims
- 2550US4496699AProcess for polymerizing high melt index olefins and polymerization catalysts used thereforeNAT DISTILLERS CHEM CORP·Filed 1982·Granted Jan 29, 1985·7 cites·6 claims
- 2650US4150209ACatalytic materials as for olefin polymerizationNAT PETRO CHEM·Filed 1978·Granted Apr 17, 1979·5 cites·2 claims
- 2744US2004192865A1Resin for extruded pipeFiled 2004·Application pending·0 cites
- 2841US2005119426A1High molecular weight HDPE resinsFiled 2004·Application pending·0 cites
- 2940US7632901B2Catalyst system and processEXXONMOBIL CHEM PATENTS INC·Filed 2003·Granted Dec 15, 2009·0 cites·16 claims
- 3039US4184028AOlefin Polymerization catalystNAT PETRO CHEM·Filed 1977·Granted Jan 15, 1980·3 cites·7 claims
- 3136US4252926AProcess for polymerizing olefins and polymerization catalysts used thereforNAT PETRO CHEM·Filed 1978·Granted Feb 24, 1981·2 cites·9 claims
- 3235US4379075AProcess for polymerizing high melt index olefins and polymerization catalysts used thereforeNAT PETRO CHEM·Filed 1981·Granted Apr 5, 1983·2 cites·7 claims
- 3335US4234709ACatalyst composition, method for producing same and method for polymerization of 1-olefins with sameNAT PETRO CHEM·Filed 1976·Granted Nov 18, 1980·2 cites·13 claims
- 3434US4312786AProcess for polymerizing olefins and polymerization catalysts used thereforNAT PETRO CHEM·Filed 1980·Granted Jan 26, 1982·2 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →