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公开(公告)号：CA2795243C
公开(公告)日：2019-06-11
申请号：CA2795243
申请日：2011-03-31
Applicant: UNIV KANSAS
Inventor： BERKLAND CORY , STEHNO-BITTEL LISA A , SIAHAAN TERUNA , RAMACHANDRAN KARTHIK
Abstract: A scaffold having islet cells or small islet cell clusters attached thereto in a multilayer, and a micro-mold having divots for culturing islets, wherein islet formation is influenced by the shape and dimensions of the divots are disclosed.
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公开(公告)号：CA2702335C
公开(公告)日：2016-12-13
申请号：CA2702335
申请日：2008-10-10
Applicant: UNIV KANSAS
Inventor： DETAMORE MICHAEL , SINGH MILLIND , SCURTO AARON M , BERKLAND CORY
Abstract: A tissue engineering scaffold for growing cells can include a plurality of biocompatible microspheres linked together to form a three-dimensional matrix. The matrix can include a plurality of pores for growing cells. The biocompatible microspheres can include first and second sets of microspheres. The first set of microspheres can have a first characteristic, and a first predetermined spatial distribution with respect to the three-dimensional matrix. The second set of microspheres can have a second characteristic that is different from the first characteristic, and a second predetermined spatial distribution that is different from the first predetermined spatial distribution with respect to the three - dimensional matrix. The first and second characteristics can selected a composition, polymer, particle size, particle size distribution, type of bioactive agent, type of bioactive agent combination, bioactive agent concentration, amount of bioactive agent, rate of bioactive agent release, mechanical strength, flexibility, rigidity, color, radiotranslucency, radiopaqueness, or the like.
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公开(公告)号：AU2013347850B2
公开(公告)日：2016-04-14
申请号：AU2013347850
申请日：2013-11-22
Applicant: CONOCOPHILLIPS CO , UNIV KANSAS
Inventor： MORADI-ARAGHI AHMAD , CHENG MIN , NEEDHAM RILEY B , HEDGES JAMES H , SARATHI RAMESH S , SCULLY FAYE L , CHRISTIAN TERRY M , GUAN HUILI , BERKLAND CORY , LIANG JENN-TAI
IPC: C08C19/22
Abstract: The invention is directed to stable and labile crosslinked water swellable polymeric microparticles that can be further gelled, methods for making same, and their various uses, More particularly, the invention relates to a composition comprising expandable polymeric microparticles having labile crosslinkers and stable crosslinkers, said microparticle mixed with a fluid and an unreacted tertiary crosslinker comprising PEI or other polyamine based tertiary crosslinker that is capable of further crosslinking the microparticle on degradation of the labile crosslinker and swelling of the particle, so as to form a stable gel.
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公开(公告)号：AU2011238540B2
公开(公告)日：2014-12-04
申请号：AU2011238540
申请日：2011-03-31
Applicant: UNIV KANSAS
Inventor： BERKLAND CORY , STEHNO-BITTEL LISA A , SIAHAAN TERUNA , RAMACHANDRAN KARTHIK
Abstract: A scaffold having islet cells or small islet cell clusters attached thereto in a multilayer, and a micro-mold having divots for culturing islets, wherein islet formation is influenced by the shape and dimensions of the divots are disclosed.
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公开(公告)号：BRPI0721464A2
公开(公告)日：2014-03-25
申请号：BRPI0721464
申请日：2007-08-30
Applicant: UNIV KANSAS
Inventor： BERKLAND CORY , CORDOVA MARY , LIANG JENN-TAI , WILLHITE G PAUL
IPC: E21B43/00
Abstract: A gel-forming composition for reducing the permeability of a subterranean formation or zone comprising a water soluble polymer (e.g., Alcoflood(R) 935) and a polyelectrolyte gelling agent comprising a polycation (e.g., polyalkylene imine) and a polyanion (e.g., dextran sulfate) is provided. The gel-forming composition is used to delay gelation in the subterranean formation.
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Patent Agency Ranking
公开(公告)号：AU2010260228A8
公开(公告)日：2014-02-06
申请号：AU2010260228
申请日：2010-06-14
Applicant: UNIV KANSAS , CONOCOPHILLIPS CO
Inventor： MORADI-ARAGHI AHMAD , HEDGES JAMES HERBERT , ZORNES DAVID RUSSELL , NEEDHAM RILEY BYRAN , GUAN HUILI , LIANG JENN-TAI , BERKLAND CORY , JOHNSON JAMES PRYOR , CHENG MIN , SCULLY FAYE LYNN
IPC: C08F26/00
Abstract: The invention is directed to long lasting crosslinked water-soluble swellable polymers, methods for making same, and their uses. More particularly, the invention relates to a composition comprising expandable polymeric particles having cationic sites as well as labile crosslinkers and stable crosslinkers, said particle mixed with a fluid. A particularly important use is as an injection fluid in petroleum production, where the expandable polymeric particles are injected into a target zones in the reservoirs and when the heat and/or pH of the reservoir cause degradation of the labile crosslinker and when the particle expands, the cationic sites in the polymer adsorb to the rock in the formation, thus diverting water to lower permeability regions and improving oil recovery. However, many other uses are possible.
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公开(公告)号：GB2482835A8
公开(公告)日：2013-09-25
申请号：GB201120813
申请日：2010-06-09
Applicant: CONOCOPHILLIPS CO , UNIV KANSAS
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公开(公告)号：AU2007292452B2
公开(公告)日：2013-06-20
申请号：AU2007292452
申请日：2007-08-30
Applicant: UNIV KANSAS
Inventor： LIANG JENN-TAI , BERKLAND CORY , WILLHITE G PAUL , CORDOVA MARY
IPC: E21B43/00
Abstract: A polyelectrolyte complex for the controlled release of an oil and gas field chemical selected from the group consisting of (a) a gel-forming or cross-linking agent, (b) a scale inhibitor, (c) a corrosion inhibitor, (d) an inhibitor of asphaltene or wax deposition, (e) a hydrogen sulfide scavenger, (f) a hydrate inhibitor, (g) a breaking agent, and (h) a surfactant.
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公开(公告)号：EA017072B1
公开(公告)日：2012-09-28
申请号：EA200900329
申请日：2007-08-30
Applicant: UNIV KANSAS
Inventor： BERKLAND CORY , CORDOVA MARY , LIANG JENN-TAI , WILLHITE G PAUL
IPC: E21B43/00
Abstract: Изобретениеотноситсяк полиэлектролитномукомплексудлярегулированноговысвобожденияхимическихреагентов, используемыхв нефтегазовомместорождении, выбранныхизгруппы, состоящейиз (а) гелеобразующегоилисшивающегоагента; (б) ингибитораобразованияотложений; (в) ингибиторакоррозии; (г) ингибитораосажденияасфальтенаиливоска; (д) улавливателясероводорода; (е) ингибитораобразованиягидратов; (ж) разжижителяи (з) поверхностно-активноговещества.
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公开(公告)号：GB2482835A
公开(公告)日：2012-02-15
申请号：GB201120813
申请日：2010-06-09
Applicant: UNIV KANSAS , CONOCOPHILLIPS CO
Inventor： MORADI-ARAGHI AHMAD , HEDGES JAMES HERBERT , NEEDHAM RILEY BYRAN , GUAN HUILI , LIANG JENN-TAI , BERKLAND CORY , JOHNSON JAMES PRYOR , CHENG MIN , SCULLY FAYE LYNN , ZORNES DAVID RUSSELL
Abstract: The invention is directed to stable crosslinked water-soluble swellable polymers and methods for making same. More particularly, the invention relates to a composition comprising expandable polymeric particles having anionic sites and labile crosslinkers and stable crosslinkers, said particle mixed with a fluid and a cationic crosslinker that is capable of further crosslinking the particle on degradation of the labile crosslinker and exposure of the anionic sites so as to form a gel. A particularly important use is as an injection fluid in petroleum production, where the expandable polymeric particles are injected into target zone and when the heat and/or pH of the target zone cause degradation of the labile crosslinker and the particle expands, the cationic crosslinker crosslinks the polymer to form a gel, thus diverting water to lower permeability regions and improving oil recovery.
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