QY

Qing Yang

Chevron: 255 patents #2 of 4,788Top 1%
📍 Bartlesville, OK: #2 of 1,143 inventorsTop 1%
🗺 Oklahoma: #5 of 12,736 inventorsTop 1%
Overall (All Time): #1,876 of 4,157,543Top 1%
256
Patents All Time

Issued Patents All Time

Showing 201–225 of 256 patents

Patent #TitleCo-InventorsDate
8309485 Methods for producing metal-containing sulfated activator-supports Max P. McDaniel, Tony R. Crain 2012-11-13
8309747 Process for synthesizing bridged cyclopentadienyl-indenyl metallocenes Mark L. Hlavinka 2012-11-13
8309748 Half-metallocene compounds and catalyst compositions Errun Ding, Joel L. Martin, Albert P. Masino, Youlu Yu 2012-11-13
8288487 Catalysts for producing broad molecular weight distribution polyolefins in the absence of added hydrogen Max P. McDaniel, Tony R. Crain, Youlu Yu 2012-10-16
8268944 Dual metallocene catalysts for polymerization of bimodal polymers Kumudini C. Jayaratne, Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Matthew G. Thorn +2 more 2012-09-18
8222174 Polymerization catalysts for producing polymers with high comonomer incorporation Tony R. Crain 2012-07-17
8207280 Use of hydrogen scavenging catalysts to control polymer molecular weight and hydrogen levels in a polymerization reactor Rex E. Murray, William B. Beaulieu, Errun Ding, Gary L. Glass, Alan L. Solenberger +1 more 2012-06-26
8153043 HDPE resins for use in pressure pipe and related applications Rajendra K. Krishnaswamy 2012-04-10
8143183 Nano-linked metallocene catalyst compositions and their polymer products Rex E. Murray, Kumudini C. Jayaratne, Joel L. Martin 2012-03-27
8143430 Nano-linked heteronuclear metallocene catalyst compositions and their polymer products Rex E. Murray, Kumudini C. Jayaratne, Joel L. Martin, Gary L. Glass 2012-03-27
8138113 Dual metallocene catalysts for polymerization of bimodal polymers Kumudini C. Jayaratne, Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Matthew G. Thorn +2 more 2012-03-20
8119553 Polymerization catalysts for producing polymers with low melt elasticity Max P. McDaniel, Joel L. Martin, Youlu Yu, David C. Rohlfing, Michael D. Jensen 2012-02-21
8114946 Process for producing broader molecular weight distribution polymers with a reverse comonomer distribution and low levels of long chain branches Max P. McDaniel, Joel L. Martin, Tony R. Crain, Randy S. Muninger, Jerry T. Lanier +4 more 2012-02-14
8080681 Nano-linked metallocene catalyst compositions and their polymer products Rex E. Murray, Kumudini C. Jayaratne, Joel L. Martin 2011-12-20
8058200 Catalysts for olefin polymerization Michael D. Jensen, Matthew G. Thorn, Kumudini C. Jayaratne, Tony R. Crain 2011-11-15
8039556 HDPE resins for use in pressure pipe and related applications Rajendra K. Krishnaswamy 2011-10-18
8030241 Catalyst compositions and polyolefins for extrusion coating applications Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Elizabeth A. Benham, Randy Muninger +3 more 2011-10-04
8013177 Method and system for forming a precursor compound for non-bridged unsymmetric polyolefin polymerization catalyst Richard M. Buck, Rex E. Murray 2011-09-06
8012900 Nano-linked metallocene catalyst compositions and their polymer products Rex E. Murray, Kumudini C. Jayaratne, Joel L. Martin 2011-09-06
7960487 Dual metallocene catalysts for polymerization of bimodal polymers Kumudini C. Jayaratne, Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Matthew G. Thorn +2 more 2011-06-14
7956139 Polymerization catalysts for producing polymers with high comonomer incorporation Tony R. Crain 2011-06-07
7919639 Nano-linked heteronuclear metallocene catalyst compositions and their polymer products Rex E. Murray, Kumudini C. Jayaratne, Joel L. Martin, Gary L. Glass 2011-04-05
7910763 Process for preparing a monocyclopentadienyl compound Kumudini C. Jayaratne, Michael D. Jensen 2011-03-22
7884163 Silica-coated alumina activator-supports for metallocene catalyst compositions Max P. McDaniel, Randy S. Muninger, Elizabeth A. Benham, Kathy S. Collins 2011-02-08
7863210 Nano-linked metallocene catalyst compositions and their polymer products Rex E. Murray, Kumudini C. Jayaratne, Joel L. Martin 2011-01-04