Patents by Inventor Jayachandran N. Kizhakkedathu
Jayachandran N. Kizhakkedathu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230024332Abstract: Provided herein are compositions comprising: (a) a polymeric catechol binder, such as: polymeric dopamine, polymeric norepinephrine, polymeric epinephrine; polymeric pyrogallol, polymeric tannic acid, polymeric hydroxyhydroquinone, polymeric catechin, polymeric epigallocatechin etc.; and (b) a hydrophilic polymer, methods for using the compositions to coat a substrate, and methods for making the compositions. In particular, the substrate may form part of an apparatus on which it would be beneficial to limit biofouling and/or protein binding.Type: ApplicationFiled: July 12, 2022Publication date: January 26, 2023Inventors: Jayachandran N. Kizhakkedathu, Dirk Lange, Joey Lo, Yan Mei, Kai Yu
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Patent number: 11459434Abstract: Provided herein are compositions comprising: (a) a polymeric catechol binder, such as: polymeric dopamine, polymeric norepinephrine, polymeric epinephrine; polymeric pyrogallol, polymeric tannic acid, polymeric hydroxyhydroquinone, polymeric catechin, polymeric epigallocatechin etc.; and (b) a hydrophilic polymer, methods for using the compositions to coat a substrate, and methods for making the compositions. In particular, the substrate may form part of an apparatus on which it would be beneficial to limit biofouling and/or protein binding.Type: GrantFiled: May 26, 2016Date of Patent: October 4, 2022Assignee: The University of British ColumbiaInventors: Jayachandran N. Kizhakkedathu, Dirk Lange, Joey Lo, Yan Mei, Kai Yu
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Publication number: 20210052635Abstract: Embodiments presented herein relate to various polymers. Some of the polymer embodiments are heparin binding polymers. Some embodiments of the heparin binding polymers can be employed to bind to heparin for methods such as separating, purifying, removing, and/or isolating heparin and heparin like molecules.Type: ApplicationFiled: August 9, 2019Publication date: February 25, 2021Applicant: University of British ColumbiaInventors: Jayachandran N. Kizhakkedathu, Rajesh A. Shenoi, Cedric J. Carter, Donald E. Brooks
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Patent number: 10525131Abstract: Herein are provided derivatized hyperbranched polyglycerols (“dHPGs”). The dHPG comprises a core comprising a hyperbranched polyglycerol derivatized with C1C20 alkyl chains and a shell comprising at least one hydrophilic substituent bound to hydroxyl groups of the core, wherein the hyperbranched polyglycerol comprises from about 1 to about 200 moles of the at least one hydrophilic substituent. The dHPGs are for use as agents for the delivery of a drug or other biologically active moiety to the urinary tract, the digestive tract, the airways, the vaginal cavity and cervix and the peritoneal cavity to treat indications such as cancer, which may be useful in the treatment of or the manufacture of a medicament, in the preparation, of a pharmaceutical composition for the treatment of cancer, as a pre-treatment or co-treatment to improve drug uptake in a tissue. Furthermore, there are provided methods of making dHPGs.Type: GrantFiled: July 26, 2018Date of Patent: January 7, 2020Assignees: The University of British Columbia, Centre for Drug Research and DevelopmentInventors: Helen M. Burt, Donald E. Brooks, Jayachandran N. Kizhakkedathu, Richard Liggins, Dechi Guan, Lu Ye, Clement Mugabe, Alan So, Martin E. Gleave, John K. Jackson, Rajesh Kumar Kainthan
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Patent number: 10441606Abstract: Embodiments presented herein relate to various polymers. Some of the polymer embodiments are heparin binding polymers. Some embodiments of the heparin binding polymers can be employed to bind to heparin for methods such as separating, purifying, removing, and/or isolating heparin and heparin like molecules.Type: GrantFiled: February 2, 2018Date of Patent: October 15, 2019Assignee: University of British ColumbiaInventors: Jayachandran N. Kizhakkedathu, Rajesh A. Shenoi, Cedric J. Carter, Donald E. Brooks
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Publication number: 20190201528Abstract: Herein are provided derivatized hyperbranched polyglycerols (“dHPGs”). The dHPG comprises a core comprising a hyperbranched polyglycerol derivatized with C1C20 alkyl chains and a shell comprising at least one hydrophilic substituent bound to hydroxyl groups of the core, wherein the hyperbranched polyglycerol comprises from about 1 to about 200 moles of the at least one hydrophilic substituent. The dHPGs are for use as agents for the delivery of a drug or other biologically active moiety to the urinary tract, the digestive tract, the airways, the vaginal cavity and cervix and the peritoneal cavity to treat indications such as cancer, which may be useful in the treatment of or the manufacture of a medicament, in the preparation, of a pharmaceutical composition for the treatment of cancer, as a pre-treatment or co-treatment to improve drug uptake in a tissue. Furthermore, there are provided methods of making dHPGs.Type: ApplicationFiled: July 26, 2018Publication date: July 4, 2019Inventors: Helen M. Burt, Donald E. Brooks, Jayachandran N. Kizhakkedathu, Richard Liggins, Dechi Guan, Lu Ye, Clement Mugabe, Alan So, Martin E. Gleave, John K. Jackson, Rajesh Kumar Kainthan
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Patent number: 10111902Abstract: Embodiments presented herein relate to various polymers. Some of the polymer embodiments are heparin binding polymers. Some embodiments of the heparin binding polymers can be employed to bind to heparin for methods such as separating, purifying, removing, and/or isolating heparin and heparin like molecules.Type: GrantFiled: February 23, 2015Date of Patent: October 30, 2018Assignee: University of British ColumbiaInventors: Jayachandran N. Kizhakkedathu, Rajesh A. Shenoi, Cedric J. Carter, Donald E. Brooks
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Patent number: 10071160Abstract: Herein are provided derivatized hyperbranched polyglycerols (“dHPGs”). The dHPG comprises a core comprising a hyperbranched polyglycerol derivatized with C1C20 alkyl chains and a shell comprising at least one hydrophilic substituent bound to hydroxyl groups of the core, wherein the hyperbranched polyglycerol comprises from about 1 to about 200 moles of the at least one hydrophilic substituent. The dHPGs are for use as agents for the delivery of a drug or other biologically active moiety to the urinary tract, the digestive tract, the airways, the vaginal cavity and cervix and the peritoneal cavity to treat indications such as cancer, which may be useful in the treatment of or the manufacture of a medicament, in the preparation, of a pharmaceutical composition for the treatment of cancer, as a pre-treatment or co-treatment to improve drug uptake in a tissue. Furthermore, there are provided methods of making dHPGs.Type: GrantFiled: December 22, 2016Date of Patent: September 11, 2018Assignees: The University of British Columbia, Centre for Drug Research and DevelopmentInventors: Helen M. Burt, Donald E. Brooks, Jayachandran N. Kizhakkedathu, Richard Liggins, Dechi Guan, Lu Ye, Clement Mugabe, Alan So, Martin E. Gleave, John K. Jackson, Rajesh Kumar Kainthan
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Publication number: 20180214478Abstract: Embodiments presented herein relate to various polymers. Some of the polymer embodiments are heparin binding polymers. Some embodiments of the heparin binding polymers can be employed to bind to heparin for methods such as separating, purifying, removing, and/or isolating heparin and heparin like molecules.Type: ApplicationFiled: February 2, 2018Publication date: August 2, 2018Applicant: University of British ColumbiaInventors: Jayachandran N. Kizhakkedathu, Rajesh A. Shenoi, Cedric J. Carter, Donald E. Brooks
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Publication number: 20180147326Abstract: Provided herein are compositions comprising: (a) a polymeric catechol binder, such as: polymeric dopamine, polymeric norepinephrine, polymeric epinephrine; polymeric pyrogallol, polymeric tannic acid, polymeric hydroxyhydroquinone, polymeric catechin, polymeric epigallocatechin etc.; and (b) a hydrophilic polymer, methods for using the compositions to coat a substrate, and methods for making the compositions. In particular, the substrate may form part of an apparatus on which it would be beneficial to limit biofouling and/or protein binding.Type: ApplicationFiled: May 26, 2016Publication date: May 31, 2018Applicant: The University of British ColumbiaInventors: Jayachandran N. Kizhakkedathu, Dirk Lange, Joey Lo, Yan Mei, Kai Yu
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Patent number: 9962521Abstract: Devices including a flexible substrate and a grafted polymer brush coating on at least one surface of the flexible substrate and methods for making and using such devices are provided herein. The grafted polymer brush included on the devices allow for controlled bending of the device during use.Type: GrantFiled: February 3, 2012Date of Patent: May 8, 2018Assignee: University of British ColumbiaInventors: Jayachandran N. Kizhakkedathu, Yuquan Zou, A. Srikantha Phani, Donald E. Brooks
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Publication number: 20170319696Abstract: Herein are provided derivatized hyperbranched polyglycerols (“dHPGs”). The dHPG comprises a core comprising a hyperbranched polyglycerol derivatized with C1C20 alkyl chains and a shell comprising at least one hydrophilic substituent bound to hydroxyl groups of the core, wherein the hyperbranched polyglycerol comprises from about 1 to about 200 moles of the at least one hydrophilic substituent. The dHPGs are for use as agents for the delivery of a drug or other biologically active moiety to the urinary tract, the digestive tract, the airways, the vaginal cavity and cervix and the peritoneal cavity to treat indications such as cancer, which may be useful in the treatment of or the manufacture of a medicament, in the preparation, of a pharmaceutical composition for the treatment of cancer, as a pre-treatment or co-treatment to improve drug uptake in a tissue. Furthermore, there are provided methods of making dHPGs.Type: ApplicationFiled: December 22, 2016Publication date: November 9, 2017Inventors: Helen M. Burt, Donald E. Brooks, Jayachandran N. Kizhakkedathu, Richard Liggins, Dechi Guan, Lu Ye, Clement Mugabe, Alan So, Martin E. Gleave, John K. Jackson, Rajesh Kumar Kainthan
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Patent number: 9789056Abstract: This invention provides the use of a polymer comprising a hyperbranched polyether polyol such as hyperbranched polyglycerol as a serum albumin substitute. Also provided are high molecular weight hyperbranched polyglycerol polymers suitable for a variety of medical and non-medical uses including methods for making such high molecular weight polymers.Type: GrantFiled: April 18, 2016Date of Patent: October 17, 2017Assignee: The University of British ColumbiaInventors: Donald E. Brooks, Jayachandran N. Kizhakkedathu, Rajesh Kumar Kainthan
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Publication number: 20170095421Abstract: A synthetic platelet substitute that interacts with platelets and the (sub)endothelium, comprising: (a) a carrier molecule comprising lipidic particles with a cross-linked surface mesh, the lipidic particles comprising: an inner lipidic particle of pharmaceutically acceptable particle-forming lipids; hydrophilic polymer chains linked to the surface of the lipidic particle, the hydrophilic polymer chains comprising a crosslinkable end group at free ends thereof; and cross-linker groups linking the end groups of the hydrophilic polymer chains to form the cross-linked surface mesh; and (b) at least one receptor molecule attached to the surface of the carrier molecule. The receptor molecule can be a peptide moiety specific for ligands involved in platelet function.Type: ApplicationFiled: May 2, 2016Publication date: April 6, 2017Applicant: Maria I. C. Gyongyossy-IssaInventors: MARIA I.C. GYONGYOSSY-ISSA, Jayachandran N. Kizhakkedathu, Iren Constantinescu, William Campbell, Carlos A. Del Carpio Munoz
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Publication number: 20170095420Abstract: A method for producing a composition of lipidic particles coated with a cross-linked surface mesh, the method comprising the steps of: (i) preparing lipidic particles comprising pharmaceutically acceptable lipids, (ii) binding hydrophilic polymer chains to the surface of the lipidic particles, and (iii) cross-linking the hydrophilic polymer chains to form the cross-linked surface mesh. Pharmaceutical compositions comprising surface modified lipidic particles prepared according to this method are also described. The lipidic particles resist fusion with red blood cells and platelets in vitro, and are amenable to further derivatization by targeting molecules for controlled release of component and contents, thus providing a new generation of drug carrier systems.Type: ApplicationFiled: May 2, 2016Publication date: April 6, 2017Applicant: Maria I. C. Gyongyossy-IssaInventors: MARIA I.C. GYONGYOSSY-ISSA, Jayachandran N. Kizhakkedathu, Iren Constantinescu
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Publication number: 20170042804Abstract: This invention provides the use of a polymer comprising a hyperbranched polyether polyol such as hyperbranched polyglycerol as a serum albumin substitute. Also provided are high molecular weight hyperbranched polyglycerol polymers suitable for a variety of medical and non-medical uses including methods for making such high molecular weight polymers.Type: ApplicationFiled: April 18, 2016Publication date: February 16, 2017Inventors: Donald E. Brooks, Jayachandran N. Kizhakkedathu, Rajesh Kumar Kainthan
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Patent number: 9561278Abstract: Herein are provided derivatized hyperbranched polyglycerols (“dHPGs”). The dHPG comprises a core comprising a hyperbranched polyglycerol derivatized with C1C20 alkyl chains and a shell comprising at least one hydrophilic substituent bound to hydroxyl groups of the core, wherein the hyperbranched polyglycerol comprises from about 1 to about 200 moles of the at least one hydrophilic substituent. The dHPGs are for use as agents for the delivery of a drug or other biologically active moiety to the urinary tract, the digestive tract, the airways, the vaginal cavity and cervix and the peritoneal cavity to treat indications such as cancer, which may be useful in the treatment of or the manufacture of a medicament, in the preparation, of a pharmaceutical composition for the treatment of cancer, as a pre-treatment or co-treatment to improve drug uptake in a tissue. Furthermore, there are provided methods of making dHPGs.Type: GrantFiled: September 28, 2015Date of Patent: February 7, 2017Assignees: The University of British Columbia, Centre for Drug Research and DevelopmentInventors: Helen M. Burt, Donald E. Brooks, Jayachandran N. Kizhakkedathu, Richard Liggins, Dechi Guan, Lu Ye, Clement Mugabe, Alan So, Martin E. Gleave, John K. Jackson, Rajesh Kumar Kainthan
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Patent number: 9346029Abstract: This invention provides the use of a polymer comprising a hyperbranched polyether polyol such as hyperbranched polyglycerol as a serum albumin substitute. Also provided are high molecular weight hyperbranched polyglycerol polymers suitable for a variety of medical and non-medical uses including methods for making such high molecular weight polymers.Type: GrantFiled: June 6, 2006Date of Patent: May 24, 2016Assignee: The University of British ColumbiaInventors: Donald E. Brooks, Jayachandran N. Kizhakkedathu, Rajesh Kumar Kainthan
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Publication number: 20160114040Abstract: Herein are provided derivatized hyperbranched polyglycerols (“dHPGs”). The dHPG comprises a core comprising a hyperbranched polyglycerol derivatized with C1C20 alkyl chains and a shell comprising at least one hydrophilic substituent bound to hydroxyl groups of the core, wherein the hyperbranched polyglycerol comprises from about 1 to about 200 moles of the at least one hydrophilic substituent. The dHPGs are for use as agents for the delivery of a drug or other biologically active moiety to the urinary tract, the digestive tract, the airways, the vaginal cavity and cervix and the peritoneal cavity to treat indications such as cancer, which may be useful in the treatment of or the manufacture of a medicament, in the preparation, of a pharmaceutical composition for the treatment of cancer, as a pre-treatment or co-treatment to improve drug uptake in a tissue. Furthermore, there are provided methods of making dHPGs.Type: ApplicationFiled: September 28, 2015Publication date: April 28, 2016Inventors: Helen M. Burt, Donald E. Brooks, Jayachandran N. Kizhakkedathu, Richard Liggins, Dechi Guan, Lu Ye, Clement Mugabe, Alan So, Martin E. Gleave, John K. Jackson, Rajesh Kumar Kainthan
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Publication number: 20150283171Abstract: Embodiments presented herein relate to various polymers. Some of the polymer embodiments are heparin binding polymers. Some embodiments of the heparin binding polymers can be employed to bind to heparin for methods such as separating, purifying, removing, and/or isolating heparin and heparin like molecules.Type: ApplicationFiled: June 18, 2015Publication date: October 8, 2015Inventors: Jayachandran N. Kizhakkedathu, Rajesh A. Shenoi, Cedric J. Carter, Donald E. Brooks