Inventor · disambiguated record
Kevin A. Stevens
Also filed as: STEVENS KEVIN A
15 granted patents·11 pending applications·38 citations·filing 2018–2025
89Inventor score
Files withEXXONMOBIL CHEMICAL PATENTS INC24EXXONMOBIL TECHNOLOGY & ENGINEERING COMPANY1HOLTCAMP MATTHEW W1
Top patents by PatentIndex Score
26 records- 0196US11712687B2Catalyst systems and polymerization processes for using the sameEXXONMOBIL CHEMICAL PATENTS INC·Filed 2020·Granted Aug 1, 2023·4 cites·18 claims
- 0294US10927205B2Polymerization processes and polymers made therefromEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted Feb 23, 2021·10 cites·14 claims
- 0392US10865258B2Mixed catalyst systems containing bridged metallocenes with a pendant group 13 element, processes for making a polymer product using same, and products made from sameEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted Dec 15, 2020·4 cites·17 claims
- 0491US10926250B2Catalyst systems and polymerization processes for using the sameEXXONMOBIL CHEMICAL PATENTS INC·Filed 2018·Granted Feb 23, 2021·4 cites·22 claims
- 0590US11198747B2Catalyst systems including two hafnocene catalyst compoundsEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted Dec 14, 2021·3 cites·20 claims
- 0690US11186601B2Metallocene compounds having appended Lewis acids and polymerization therewithEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted Nov 30, 2021·4 cites·40 claims
- 0789US11130827B2Polyethylene compositions and articles made therefromEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted Sep 28, 2021·4 cites·26 claims
- 0888US11046796B2Films made from polyethylene compositions and processes for making sameEXXONMOBIL CHEMICAL PATENTS INC·Filed 2018·Granted Jun 29, 2021·3 cites·16 claims
- 0987US10899860B2Polymerization processes and polymers made therefromEXXONMOBIL CHEMICAL PATENTS INC·Filed 2018·Granted Jan 26, 2021·2 cites·19 claims
- 1070US2021079137A1Bridged Metallocene Catalysts with a Pendant Group 13 Element, Catalyst Systems Containing Same, Processes for Making a Polymer Product Using Same, and Products Made from SameHOLTCAMP MATTHEW W·Filed 2020·Application pending·0 cites
- 1169US2021054111A1Mixed Catalyst Systems Containing Bridged Metallocenes with a Pendant Group 13 Element, Processes for Making a Polymer Product Using Same, and Products Made from SameEXXONMOBIL CHEMICAL PATENTS INC·Filed 2020·Application pending·0 cites
- 1268US10851187B2Bridged metallocene catalysts with a pendant group 13 element, catalyst systems containing same, processes for making a polymer product using same, and products made from sameEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted Dec 1, 2020·0 cites·16 claims
- 1366US2025179106A1Metal Bis(Imino) Aryl Compounds and Methods ThereofEXXONMOBIL CHEMICAL PATENTS INC·Filed 2023·Application pending·0 cites
- 1462US2025188108A1Metal-Containing Bis(Imino) per-Substituted Aryl Compounds and Methods ThereofEXXONMOBIL CHEMICAL PATENTS INC·Filed 2023·Application pending·0 cites
- 1561US11976140B2In-line trimming of dry catalyst feedEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted May 7, 2024·0 cites·20 claims
- 1660US12043679B2On-line adjustment of mixed catalyst ratio by trim and olefin polymerization with the sameEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted Jul 23, 2024·0 cites·20 claims
- 1760US2024092947A1Improved In-Situ MAO Derived Silica Supported Single-Site Metallocene CatalystsEXXONMOBIL CHEMICAL PATENTS INC·Filed 2021·Application pending·0 cites
- 1860US2023399426A1Medium density polyethylene compositions with broad orthogonal composition distributionEXXONMOBIL CHEMICAL PATENTS INC·Filed 2021·Application pending·0 cites
- 1959US2023322972A1Supported Catalyst Systems and Processes for Use ThereofEXXONMOBIL CHEMICAL PATENTS INC·Filed 2021·Application pending·0 cites
- 2055US2023021760A1Biaxially Oriented Polyethylene Films and Process for Production ThereofEXXONMOBIL CHEMICAL PATENTS INC·Filed 2020·Application pending·0 cites
- 2154US12091476B2On-line adjustment of catalysts by trim and olefin polymerizationEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted Sep 17, 2024·0 cites·17 claims
- 2254US11738334B2Supported catalyst systems and processes for use thereofEXXONMOBIL CHEMICAL PATENTS INC·Filed 2021·Granted Aug 29, 2023·0 cites·20 claims
- 2354US2025329423A1Relating cross-fractionation characterizations to polymer propertiesEXXONMOBIL TECHNOLOGY & ENGINEERING COMPANY·Filed 2025·Application pending·0 cites
- 2447US2022033535A1On-Line Adjustment of Mixed Catalyst Ratio and Olefin PolymerizationEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Application pending·0 cites
- 2546US11492428B2Methods to produce heterogeneous polyethylene granulesEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted Nov 8, 2022·0 cites·24 claims
- 2645US2022056168A1Slurry Trim Feeder ModificationsEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →