Patents by Inventor Kunisi Venkatasubban

Kunisi Venkatasubban 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).

  • MEDICAL DEVICES HAVING HOMOGENEOUS CHARGE DENSITY AND METHODS FOR MAKING SAME
    Publication number: 20210318469
    Abstract: The present invention relates to ionic silicone hydrogel polymers displaying improved lysozyme uptake, low contact angle and reduced water soluble polymeric ammonium salt uptake.
    Type: Application
    Filed: June 16, 2021
    Publication date: October 14, 2021
    Inventors: Shivkumar Mahadevan, Zohra Fadli, Charles Scales, Thomas Maggio, Kunisi Venkatasubban, Eric R. George, James D. Ford, Carrie L. Davis, Leah Hansen, Scott L. Joslin
  • Medical devices having homogeneous charge density and methods for making same
    Patent number: 11067720
    Abstract: The present invention relates to ionic silicone hydrogel polymers displaying improved lysozyme uptake, low contact angle and reduced water soluble polymeric ammonium salt uptake.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: July 20, 2021
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Shivkumar Mahadevan, Zohra Fadli, Charles Scales, Thomas Maggio, Kunisi Venkatasubban, Eric R. George, James D. Ford, Carrie L. Davis, Leah Hansen, Scott L. Joslin
  • MEDICAL DEVICES HAVING HOMOGENEOUS CHARGE DENSITY AND METHODS FOR MAKING SAME
    Publication number: 20190353829
    Abstract: The present invention relates to ionic silicone hydrogel polymers displaying improved lysozyme uptake, low contact angle and reduced water soluble polymeric ammonium salt uptake.
    Type: Application
    Filed: July 18, 2019
    Publication date: November 21, 2019
    Inventors: Shivkumar Mahadevan, Zohra Fadli, Charles Scales, Thomas Maggio, Kunisi Venkatasubban, Eric R. George, James D. Ford, Carrie L. Davis, Leah Hansen, Scott L. Joslin
  • Medical devices having homogeneous charge density and methods for making same
    Patent number: 10386545
    Abstract: The present invention relates to ionic silicone hydrogel polymers displaying improved lysozyme uptake, low contact angle and reduced water soluble polymeric ammonium salt uptake.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: August 20, 2019
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Shivkumar Mahadevan, Zohra Fadli, Charles Scales, Thomas Maggio, Kunisi Venkatasubban, Eric R. George, James D. Ford, Carrie L. Davis, Leah Hansen, Scott L. Joslin
  • Non-reactive, hydrophilic polymers having terminal siloxanes and methods for making and using the same
    Patent number: 10301465
    Abstract: The present invention relates to compositions comprising at least one stable, near-monodisperse, non-reactive hydrophilic polymer comprising in said polymer's backbone, a hydrophilic segment having a degree of polymerization of about 10 to about 1000, and a linear silicone segment at at least one terminal end of said non-reactive hydrophilic polymer, wherein said silicone segment comprises between about 6 and about 200 siloxy units, and said non-reactive hydrophilic polymer is associated, via the linear silicone block with a silicone hydrogel. The non-reactive hydrophilic polymers may be incorporated into the formulation from which the silicone hydrogel is made or may be contacted with the silicone hydrogel post formation.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: May 28, 2019
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Charles Scales, Kunisi Venkatasubban, Shivkumar Mahadevan, Zohra Fadli, Carrie Davis, Brent Matthew Healy
  • NON-REACTIVE, HYDROPHILIC POLYMERS HAVING TERMINAL SILOXANES AND METHODS FOR MAKING AND USING THE SAME
    Publication number: 20180044518
    Abstract: The present invention relates to compositions comprising at least one stable, near-monodisperse, non-reactive hydrophilic polymer comprising in said polymer's backbone, a hydrophilic segment having a degree of polymerization of about 10 to about 1000, and a linear silicone segment at at least one terminal end of said non-reactive hydrophilic polymer, wherein said silicone segment comprises between about 6 and about 200 siloxy units, and said non-reactive hydrophilic polymer is associated, via the linear silicone block with a silicone hydrogel. The non-reactive hydrophilic polymers may be incorporated into the formulation from which the silicone hydrogel is made or may be contacted with the silicone hydrogel post formation.
    Type: Application
    Filed: October 3, 2017
    Publication date: February 15, 2018
    Inventors: Charles Scales, Kunisi Venkatasubban, Shivkumar Mahadevan, Zohra Fadli, Brent Matthew Healy
  • Non-reactive, hydrophilic polymers having terminal siloxanes and methods for making and using the same
    Patent number: 9815979
    Abstract: The present invention relates to compositions comprising at least one stable, near-monodisperse, non-reactive hydrophilic polymer comprising in said polymer's backbone, a hydrophilic segment having a degree of polymerization of about 10 to about 1000, and a linear silicone segment at at least one terminal end of said non-reactive hydrophilic polymer, wherein said silicone segment comprises between about 6 and about 200 siloxy units, and said non-reactive hydrophilic polymer is associated, via the linear silicone block with a silicone hydrogel. The non-reactive hydrophilic polymers may be incorporated into the formulation from which the silicone hydrogel is made or may be contacted with the silicone hydrogel post formation.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: November 14, 2017
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Charles Scales, Kunisi Venkatasubban, Shivkumar Mahadevan, Zohra Fadli, Brent Matthew Healy
  • MEDICAL DEVICES HAVING HOMOGENEOUS CHARGE DENSITY AND METHODS FOR MAKING SAME
    Publication number: 20170146695
    Abstract: The present invention relates to ionic silicone hydrogel polymers displaying improved lysozyme uptake, low contact angle and reduced water soluble polymeric ammonium salt uptake.
    Type: Application
    Filed: February 2, 2017
    Publication date: May 25, 2017
    Inventors: Shivkumar Mahadevan, Zohra Fadli, Charles Scales, Thomas Maggio, Kunisi Venkatasubban, Eric R. George, James D. Ford, Carrie L. Davis, Leah Hansen, Scott L. Joslin
  • Medical devices having homogeneous charge density and methods for making same
    Patent number: 9612364
    Abstract: The present invention relates to ionic silicone hydrogel polymers comprising at least one pharmaceutical or nutriceutical component and displaying improved lysozyme uptake, low contact angle and reduced water soluble polymeric ammonium salt uptake.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: April 4, 2017
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Shivkumar Mahadevan, Zohra Fadli, Charles Scales, Thomas Maggio, Kunisi Venkatasubban, Eric R. George, James D. Ford, Carrie L. Davis, Leah Hansen, Scott L. Joslin, Douglas G. Vanderlaan, Ranganath Raja, Sharmila Muthukrishnan, C. Surendran, R. Sridharan
  • Medical devices having homogeneous charge density and methods for making same
    Patent number: 9599751
    Abstract: The present invention relates to ionic silicone hydrogel polymers displaying improved lysozyme uptake, low contact angle and reduced water soluble polymeric ammonium salt uptake.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: March 21, 2017
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Shivkumar Mahadevan, Zohra Fadli, Charles Scales, Thomas Maggio, Kunisi Venkatasubban, Eric R. George, James D. Ford, Carrie L. Davis, Leah Hansen, Scott L. Joslin
  • NON-REACTIVE, HYDROPHILIC POLYMERS HAVING TERMINAL SILOXANES AND METHODS FOR MAKING AND USING THE SAME
    Publication number: 20170051145
    Abstract: The present invention relates to compositions comprising at least one stable, near-monodisperse, non-reactive hydrophilic polymer comprising in said polymer's backbone, a hydrophilic segment having a degree of polymerization of about 10 to about 1000, and a linear silicone segment at at least one terminal end of said non-reactive hydrophilic polymer, wherein said silicone segment comprises between about 6 and about 200 siloxy units, and said non-reactive hydrophilic polymer is associated, via the linear silicone block with a silicone hydrogel. The non-reactive hydrophilic polymers may be incorporated into the formulation from which the silicone hydrogel is made or may be contacted with the silicone hydrogel post formation.
    Type: Application
    Filed: November 4, 2016
    Publication date: February 23, 2017
    Inventors: Charles Scales, Kunisi Venkatasubban, Shivkumar Mahadevan, Zohra Fadli, Brent Matthew Healy
  • Non-reactive, hydrophilic polymers having terminal siloxanes and methods for making and using the same
    Patent number: 9522980
    Abstract: The present invention relates to compositions comprising at least one stable, near-monodisperse, non-reactive hydrophilic polymer comprising in said polymer's backbone, a hydrophilic segment having a degree of polymerization of about 10 to about 1000, and a linear silicone segment at least one terminal end of said non-reactive hydrophilic polymer, wherein said silicone segment comprises between about 6 and about 200 siloxy units, and said non-reactive hydrophilic polymer is associated, via the linear silicone block with a silicone hydrogel. The non-reactive hydrophilic polymers may be incorporated into the formulation from which the silicone hydrogel is made or may be contacted with the silicone hydrogel post formation.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: December 20, 2016
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Charles Scales, Kunisi Venkatasubban, Shivkumar Mahadevan, Zohra Fadli, Carrie Davis, Brent Matthew Healy
  • Silicone-containing contact lens having reduced amount of silicon on the surface
    Patent number: 9250357
    Abstract: The present invention relates to a method of reducing the amount of silicon on a surface of a contact lens, wherein the method includes reacting the surface of a contact lens containing at least one silicone component with a fluoride reagent.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: February 2, 2016
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Shivkumar Mahadevan, Douglas G. Vanderlaan, Charles W. Scales, Jaqunda Patton, Kunisi Venkatasubban
  • MEDICAL DEVICES HAVING HOMOGENEOUS CHARGE DENSITY AND METHODS FOR MAKING SAME
    Publication number: 20150378057
    Abstract: The present invention relates to ionic silicone hydrogel polymers displaying improved lysozyme uptake, low contact angle and reduced water soluble polymeric ammonium salt uptake.
    Type: Application
    Filed: September 2, 2015
    Publication date: December 31, 2015
    Inventors: Shivkumar Mahadevan, Zohra Fadli, Charles Scales, Thomas Maggio, Kunisi Venkatasubban, Eric R. George, James D. Ford, Carrie L. Davis, Leah Hansen, Scott L. Joslin
  • Medical devices having homogeneous charge density and methods for making same
    Patent number: 9170349
    Abstract: The present invention relates to ionic silicone hydrogel polymers displaying improved lysozyme uptake, low contact angle and reduced water soluble polymeric ammonium salt uptake.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: October 27, 2015
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Shivkumar Mahadevan, Zohra Fadli, Charles Scales, Thomas Maggio, Kunisi Venkatasubban, Eric R. George, James D. Ford, Carrie L. Davis, Leah Hansen, Scott L. Joslin
  • MEDICAL DEVICES HAVING HOMOGENEOUS CHARGE DENSITY AND METHODS FOR MAKING SAME
    Publication number: 20150185365
    Abstract: The present invention relates to ionic silicone hydrogel polymers comprising at least one pharmaceutical or nutriceutical component and displaying improved lysozyme uptake, low contact angle and reduced water soluble polymeric ammonium salt uptake.
    Type: Application
    Filed: March 13, 2015
    Publication date: July 2, 2015
    Inventors: Shivkumar Mahadevan, Zohra Fadli, Charles Scales, Thomas Maggio, Kunisi Venkatasubban, Eric R. George, James D. Ford, Carrie L. Davis, Leah Hansen, Scott L. Joslin
  • SILICONE-CONTAINING CONTACT LENS HAVING CLAY TREATMENT APPLIED THERETO
    Publication number: 20140268028
    Abstract: The present invention relates to a contact lens including at least one clay and at last one silicone component, wherein the at least one clay is applied to the surface of the contact lens and the contact lens does not include any diffusible material whose release from the contact lens is inhibited by the at least one clay.
    Type: Application
    Filed: February 24, 2014
    Publication date: September 18, 2014
    Applicant: Johnson & Johnson Vision Care, Inc.
    Inventors: Douglas G. Vanderlaan, Jaqunda Patton, Kunisi Venkatasubban
  • SILICONE-CONTAINING CONTACT LENS HAVING REDUCED AMOUNT OF SILICON ON THE SURFACE
    Publication number: 20140275434
    Abstract: The present invention relates to a method of reducing the amount of silicon on a surface of a contact lens, wherein the method includes reacting the surface of a contact lens containing at least one silicone component with a fluoride reagent.
    Type: Application
    Filed: February 24, 2014
    Publication date: September 18, 2014
    Applicant: Johnson & Johnson Vision Care, Inc.
    Inventors: Shivkumar Mahadevan, Douglas G. Vanderlaan, Charles W. Scales, Jaqunda Patton, Kunisi Venkatasubban
  • MEDICAL DEVICES HAVING HOMOGENEOUS CHARGE DENSITY AND METHODS FOR MAKING SAME
    Publication number: 20120283353
    Abstract: The present invention relates to ionic silicone hydrogel polymers displaying improved lysozyme uptake, low contact angle and reduced water soluble polymeric ammonium salt uptake.
    Type: Application
    Filed: April 18, 2012
    Publication date: November 8, 2012
    Inventors: Shivkumar Mahadevan, Zohra Fadli, Charles Scales, Thomas Maggio, Kunisi Venkatasubban, Eric R. George, James D. Ford, Carrie L. Davis, Leah Hansen, Scott L. Joslin
  • SYNTHESIS OF HYDROXYALKYL AMIDES FROM ESTERS
    Publication number: 20120277444
    Abstract: Hydroxyamides are synthesized from esters. A process of making hydroxyalkyl amides comprises: reacting an ester with a hydroxyalkyl amine having the formula H2N—R3—OH wherein R3 is a substituted or unsubstituted C2 to C5 alkyl, in the presence of a catalyst in an anhydrous solution to form the hydroxyalkyl amides. Monomers suitable for formation of polymeric articles can utilize these hydroxyamides.
    Type: Application
    Filed: March 8, 2012
    Publication date: November 1, 2012
    Inventors: Shivkumar Mahadevan, Kunisi Venkatasubban