Patents by Inventor S. Kumar Chandrasekaran

S. Kumar Chandrasekaran 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: 20100305054
    Abstract: The present invention relates to formulations of concentrated azalide antibiotics and methods for making and using them. Specifically, the invention relates to a method of treating an infection comprising administering to a patient in need thereof, an effective amount of a concentrated aqueous azalide antibiotic formulation made according to the method comprising dissolving an azalide antibiotic in an aqueous solution comprising a strong acid. The invention also relates to methods for making concentrated aqueous azalide antibiotic formulations for use in pulmonary infection, a nasopharyngeal infection, an otic infection, an ocular infection, a dermal or a vaginal infection. The invention also relates to concentrated aqueous azalide antibiotic formulations made by dissolving an azalide antibiotic in an aqueous solution comprising a strong acid.
    Type: Application
    Filed: August 12, 2010
    Publication date: December 2, 2010
    Applicant: INSITE VISION INCORPORATED
    Inventors: Lyle Bowman, S. Kumar Chandrasekaran, Roy Duane Archibald, Stephen Pham, David Mufson
  • Patent number: 7795231
    Abstract: The present invention relates to formulations of concentrated azalide antibiotics and methods for making and using them. Specifically, the invention relates to a method of treating an infection comprising administering to a patient in need thereof, an effective amount of a concentrated aqueous azalide antibiotic formulation made according to the method comprising dissolving an azalide antibiotic in an aqueous solution comprising a strong acid. The invention also relates to methods for making concentrated aqueous azalide antibiotic formulations for use in pulmonary infection, a nasopharyngeal infection, an otic infection, an ocular infection, a dermal or a vaginal infection. The invention also relates to concentrated aqueous azalide antibiotic formulations made by dissolving an azalide antibiotic in an aqueous solution comprising a strong acid.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: September 14, 2010
    Assignee: Insite Vision Incorporated
    Inventors: Lyle Bowman, S. Kumar Chandrasekaran, Roy Duane Archibald, Stephen Pham, David Mufson
  • Publication number: 20090093449
    Abstract: The present invention relates to formulations of concentrated azalide antibiotics and methods for making and using them. Specifically, the invention relates to a method of treating an infection comprising administering to a patient in need thereof, an effective amount of a concentrated aqueous azalide antibiotic formulation made according to the method comprising dissolving an azalide antibiotic in an aqueous solution comprising a strong acid. The invention also relates to methods for making concentrated aqueous azalide antibiotic formulations for use in pulmonary infection, a nasopharyngeal infection, an otic infection, an ocular infection, a dermal or a vaginal infection. The invention also relates to concentrated aqueous azalide antibiotic formulations made by dissolving an azalide antibiotic in an aqueous solution comprising a strong acid.
    Type: Application
    Filed: October 4, 2007
    Publication date: April 9, 2009
    Inventors: Lyle Bowman, S. Kumar Chandrasekaran, Roy Duane Archibald, Stephen Pham, David Mufson
  • Patent number: 4687816
    Abstract: A process for the treatment of a soft contact lens, to increase its resistance to the deposition thereon and diffusion and accumulation therein of substances which will promote its clouding and discoloration in use, and to improve its mechanical strength, includes treating a hydroxyl group-containing acrylic ester soft contact lens or replica with an organic acid anhydride for a sufficient period of time to treat at least a portion of polymer molecules on the outer surfaces, e.g. by esterifying hydroxyl groups on the molecules and facilitating extraction of organic-type impurities. The process is optionally performed in the presence of a medium which partially swells the surface regions of the lens or replica prior to or during the process.
    Type: Grant
    Filed: August 14, 1985
    Date of Patent: August 18, 1987
    Assignee: Sola U.S.A. Inc.
    Inventors: Shaow B. Lin, Lyle M. Bowman, S. Kumar Chandrasekaran, Thomas B. Harvey, III
  • Patent number: 4666249
    Abstract: A contact lens for correction of astigmatism is formed from a single polymeric or copolymeric material. The lens has a central optical zone of greater rigidity than a surrounding non-optical zone. The rigidity of the central optical zone is sufficient for it to retain an astigmatism-correcting shape when worn on an eye, while the surrounding non-optical zone conforms to the shape of the eye.
    Type: Grant
    Filed: August 14, 1985
    Date of Patent: May 19, 1987
    Assignee: Sola U.S.A. Inc.
    Inventors: Robert E. Bauman, S. Kumar Chandrasekaran, Shaow B. Lin, Lyle M. Bowman, Thomas B. Harvey, III