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).

  • Publication number: 20230024332
    Abstract: 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: Application
    Filed: July 12, 2022
    Publication date: January 26, 2023
    Inventors: Jayachandran N. Kizhakkedathu, Dirk Lange, Joey Lo, Yan Mei, Kai Yu
  • Patent number: 11459434
    Abstract: 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: Grant
    Filed: May 26, 2016
    Date of Patent: October 4, 2022
    Assignee: The University of British Columbia
    Inventors: Jayachandran N. Kizhakkedathu, Dirk Lange, Joey Lo, Yan Mei, Kai Yu
  • Publication number: 20210052635
    Abstract: 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: Application
    Filed: August 9, 2019
    Publication date: February 25, 2021
    Applicant: University of British Columbia
    Inventors: Jayachandran N. Kizhakkedathu, Rajesh A. Shenoi, Cedric J. Carter, Donald E. Brooks
  • Patent number: 10525131
    Abstract: 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: Grant
    Filed: July 26, 2018
    Date of Patent: January 7, 2020
    Assignees: The University of British Columbia, Centre for Drug Research and Development
    Inventors: 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
  • Patent number: 10441606
    Abstract: 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: Grant
    Filed: February 2, 2018
    Date of Patent: October 15, 2019
    Assignee: University of British Columbia
    Inventors: Jayachandran N. Kizhakkedathu, Rajesh A. Shenoi, Cedric J. Carter, Donald E. Brooks
  • Publication number: 20190201528
    Abstract: 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: Application
    Filed: July 26, 2018
    Publication date: July 4, 2019
    Inventors: 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
  • Patent number: 10111902
    Abstract: 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: Grant
    Filed: February 23, 2015
    Date of Patent: October 30, 2018
    Assignee: University of British Columbia
    Inventors: Jayachandran N. Kizhakkedathu, Rajesh A. Shenoi, Cedric J. Carter, Donald E. Brooks
  • Patent number: 10071160
    Abstract: 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: Grant
    Filed: December 22, 2016
    Date of Patent: September 11, 2018
    Assignees: The University of British Columbia, Centre for Drug Research and Development
    Inventors: 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
  • Publication number: 20180214478
    Abstract: 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: Application
    Filed: February 2, 2018
    Publication date: August 2, 2018
    Applicant: University of British Columbia
    Inventors: Jayachandran N. Kizhakkedathu, Rajesh A. Shenoi, Cedric J. Carter, Donald E. Brooks
  • Publication number: 20180147326
    Abstract: 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: Application
    Filed: May 26, 2016
    Publication date: May 31, 2018
    Applicant: The University of British Columbia
    Inventors: Jayachandran N. Kizhakkedathu, Dirk Lange, Joey Lo, Yan Mei, Kai Yu
  • Patent number: 9962521
    Abstract: 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: Grant
    Filed: February 3, 2012
    Date of Patent: May 8, 2018
    Assignee: University of British Columbia
    Inventors: Jayachandran N. Kizhakkedathu, Yuquan Zou, A. Srikantha Phani, Donald E. Brooks
  • Publication number: 20170319696
    Abstract: 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: Application
    Filed: December 22, 2016
    Publication date: November 9, 2017
    Inventors: 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
  • Patent number: 9789056
    Abstract: 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: Grant
    Filed: April 18, 2016
    Date of Patent: October 17, 2017
    Assignee: The University of British Columbia
    Inventors: Donald E. Brooks, Jayachandran N. Kizhakkedathu, Rajesh Kumar Kainthan
  • Publication number: 20170095421
    Abstract: 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: Application
    Filed: May 2, 2016
    Publication date: April 6, 2017
    Applicant: Maria I. C. Gyongyossy-Issa
    Inventors: MARIA I.C. GYONGYOSSY-ISSA, Jayachandran N. Kizhakkedathu, Iren Constantinescu, William Campbell, Carlos A. Del Carpio Munoz
  • Publication number: 20170095420
    Abstract: 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: Application
    Filed: May 2, 2016
    Publication date: April 6, 2017
    Applicant: Maria I. C. Gyongyossy-Issa
    Inventors: MARIA I.C. GYONGYOSSY-ISSA, Jayachandran N. Kizhakkedathu, Iren Constantinescu
  • Publication number: 20170042804
    Abstract: 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: Application
    Filed: April 18, 2016
    Publication date: February 16, 2017
    Inventors: Donald E. Brooks, Jayachandran N. Kizhakkedathu, Rajesh Kumar Kainthan
  • Patent number: 9561278
    Abstract: 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: Grant
    Filed: September 28, 2015
    Date of Patent: February 7, 2017
    Assignees: The University of British Columbia, Centre for Drug Research and Development
    Inventors: 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
  • Patent number: 9346029
    Abstract: 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: Grant
    Filed: June 6, 2006
    Date of Patent: May 24, 2016
    Assignee: The University of British Columbia
    Inventors: Donald E. Brooks, Jayachandran N. Kizhakkedathu, Rajesh Kumar Kainthan
  • Publication number: 20160114040
    Abstract: 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: Application
    Filed: September 28, 2015
    Publication date: April 28, 2016
    Inventors: 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
  • Publication number: 20150283171
    Abstract: 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: Application
    Filed: June 18, 2015
    Publication date: October 8, 2015
    Inventors: Jayachandran N. Kizhakkedathu, Rajesh A. Shenoi, Cedric J. Carter, Donald E. Brooks