Inventor · disambiguated record
Andy C. Chang
Also filed as: CHANG ANDY · CHANG ANDY C · CHANG ANDY CHENG
30 granted patents·11 pending applications·1,228 citations·filing 2005–2023
97Inventor score
Files withDOW GLOBAL TECHNOLOGIES INC16DOW GLOBAL TECHNOLOGIES LLC10HALLIBURTON ENERGY SERVICES INC9CHANG ANDY C3ALLGEUER THOMAS T1
Top patents by PatentIndex Score
41 records- 0199US7910658B2Compositions of ethylene/α-olefin multi-block interpolymer for elastic films and laminatesDOW GLOBAL TECHNOLOGIES LLC·Filed 2007·Granted Mar 22, 2011·62 cites·10 claims
- 0299US7737215B2Compositions of ethylene/α-olefin multi-block interpolymer for elastic films and laminatesDOW GLOBAL TECHNOLOGIES INC·Filed 2006·Granted Jun 15, 2010·58 cites·38 claims
- 0398US7947367B2Fibers made from copolymers of ethylene/α-olefinsDOW GLOBAL TECHNOLOGIES LLC·Filed 2006·Granted May 24, 2011·51 cites·22 claims
- 0498US7504347B2Fibers made from copolymers of propylene/α-olefinsDOW GLOBAL TECHNOLOGIES INC·Filed 2006·Granted Mar 17, 2009·153 cites·21 claims
- 0598US7498282B2Multi-layer, elastic articlesDOW GLOBAL TECHNOLOGIES INC·Filed 2006·Granted Mar 3, 2009·98 cites·156 claims
- 0698US7355089B2Compositions of ethylene/α-olefin multi-block interpolymer for elastic films and laminatesDOW GLOBAL TECHNOLOGIES INC·Filed 2006·Granted Apr 8, 2008·393 cites·26 claims
- 0797US7803728B2Fibers made from copolymers of ethylene/α-olefinsDOW GLOBAL TECHNOLOGIES INC·Filed 2006·Granted Sep 28, 2010·60 cites·18 claims
- 0897US7737061B2Compositions of ethylene/alpha-olefin multi-block interpolymer for elastic films and laminatesDOW GLOBAL TECHNOLOGIES INC·Filed 2006·Granted Jun 15, 2010·54 cites·15 claims
- 0997US7732052B2Compositions of ethylene/alpha-olefin multi-block interpolymer for elastic films and laminatesDOW GLOBAL TECHNOLOGIES INC·Filed 2008·Granted Jun 8, 2010·54 cites·27 claims
- 1095US8721827B2Elastic films and laminatesCHANG ANDY C·Filed 2012·Granted May 13, 2014·20 cites·2 claims
- 1195US8273068B2Compositions of ethylene/alpha-olefin multi-block interpolymer for elastic films and laminatesCHANG ANDY C·Filed 2008·Granted Sep 25, 2012·45 cites·17 claims
- 1295US7101623B2Extensible and elastic conjugate fibers and webs having a nontacky feelDOW GLOBAL TECHNOLOGIES INC·Filed 2005·Granted Sep 5, 2006·27 cites·20 claims
- 1394US8067319B2Fibers made from copolymers of ethylene/α-olefinsPOON BENJAMIN C·Filed 2010·Granted Nov 29, 2011·40 cites·19 claims
- 1494US7807593B2Multi-layer, pre-stretched elastic articlesDOW GLOBAL TECHNOLOGIES INC·Filed 2006·Granted Oct 5, 2010·23 cites·56 claims
- 1593US7413803B2Extensible and elastic conjugate fibers and webs having a nontacky feelDOW GLOBAL TECHNOLOGIES INC·Filed 2006·Granted Aug 19, 2008·16 cites·4 claims
- 1692US7101622B2Propylene-based copolymers, a method of making the fibers and articles made from the fibersDOW GLOBAL TECHNOLOGIES INC·Filed 2005·Granted Sep 5, 2006·24 cites·26 claims
- 1788US9677370B2Deformable plug and seal well systemHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Jun 13, 2017·8 cites·23 claims
- 1885US7893161B2Propylene-based elastomeric compositionDOW GLOBAL TECHNOLOGIES INC·Filed 2006·Granted Feb 22, 2011·9 cites·17 claims
- 1984US10711331B2Polycrystalline diamond compact with gradient interfacial layerHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Jul 14, 2020·3 cites·22 claims
- 2084US7847029B2Elastomeric resin compositions with improved resistance to draw resonanceDOW GLOBAL TECHNOLOGIES INC·Filed 2005·Granted Dec 7, 2010·7 cites·10 claims
- 2183US10107064B2Changeable well seal toolHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Oct 23, 2018·5 cites·20 claims
- 2283US9677371B2Fluid loss well treatmentHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Jun 13, 2017·5 cites·16 claims
- 2383US8022144B2Propylene-based elastomeric compositionDOW GLOBAL TECHNOLOGIES LLC·Filed 2011·Granted Sep 20, 2011·4 cites·20 claims
- 2480US9677372B2Well system cementing plugHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Jun 13, 2017·4 cites·20 claims
- 2575US9958572B2Synthetic test beds for fracturing optimization and methods of manufacture and use thereofHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted May 1, 2018·3 cites·17 claims
- 2673US7893159B2Blends of styrenic block copolymers and propylene-alpha olefin copolymersDOW GLOBAL TECHNOLOGIES INC·Filed 2006·Granted Feb 22, 2011·2 cites·18 claims
- 2768US10344155B2Heat-resistant polyolefin compositions suitable for filmsDOW GLOBAL TECHNOLOGIES LLC·Filed 2017·Granted Jul 9, 2019·0 cites·8 claims
- 2862US2025389390A1Assembly for handling, transporting and storing hydrogen, wherein the assembly comprises a component comprising a polyaryletherketone polymer, use of such material and method employing such materialVICTREX MFG LTD·Filed 2023·Application pending·0 cites
- 2962US2011123802A1Polyolefin compositions suitable for elastic articlesDOW GLOBAL TECHNOLOGIES LLC·Filed 2009·Application pending·0 cites
- 3059US2015166779A1Heat-resistant polyolefin compositions suitable for filmsDOW GLOBAL TECHNOLOGIES LLC·Filed 2013·Application pending·0 cites
- 3156US2011003524A1FIBERS AND FABRICS MADE FROM ETHYLENE/alpha-OLEFIN INTERPOLYMERSDOW GLOBAL TECHNOLOGIES INC·Filed 2009·Application pending·0 cites
- 3249US10967619B2Polyolefin-based elastic film structures, laminates and methods thereofDOW GLOBAL TECHNOLOGIES LLC·Filed 2015·Granted Apr 6, 2021·0 cites·16 claims
- 3349US2008199673A1Propylene Based Meltblown Nonwoven Layers and Composite StructuresALLGEUER THOMAS T·Filed 2006·Application pending·0 cites
- 3447US2014187114A1Elastic nonwovens with improved haptics and mechanical propertiesDOW GLOBAL TECHNOLOGIES LLC·Filed 2012·Application pending·0 cites
- 3544US2017246846A1Polyolefin-based elastic film structures, laminates and methods thereofDOW GLOBAL TECHNOLOGIES LLC·Filed 2015·Application pending·0 cites
- 3643US2007036972A1Propylene-based copolymers, a method of making the fibers and articles made from the fibersCHANG ANDY C·Filed 2006·Application pending·0 cites
- 3742US2015132515A1Polypropylene-based film with improved mechanical and sealing properties and method of making sameDOW GLOBAL TECHNOLOGIES LLC·Filed 2013·Application pending·0 cites
- 3842US2010279032A1Synthetic turf with shock absorption layerDOW GLOBAL TECHNOLOGIES INC·Filed 2008·Application pending·0 cites
- 3938US10920303B2Induced material segregation methods of manufacturing a polycrystalline diamond toolHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Feb 16, 2021·0 cites·20 claims
- 4038US10598005B2pH-sensitive chemicals for downhole fluid sensing and communication with the surfaceHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Mar 24, 2020·0 cites·14 claims
- 4135US2018128070A1Degradable downhole tools comprising cellulosic derivativesHALLIBURTON ENERGY SERVICES INC·Filed 2015·Application pending·0 cites
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