Patents by Inventor Srini Venkastesh

Srini Venkastesh 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).

  • Patent number: 8759321
    Abstract: An ophthalmic composition comprising 0.5 ppm to 3 ppm of poly(hexamethylene biguanide), and 0.002 wt. % to 0.03 wt. % of hyaluronic acid. The weight ratio of hyaluronic acid to poly(hexamethylene biguanide) in the composition is from 45:1 to 120:1. The invention is also directed to a method of cleaning, disinfecting or packaging contact lenses with the composition, or to a method of rewetting contact lenses with the composition.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: June 24, 2014
    Assignee: Bausch & Lomb Incorporated
    Inventors: Susan E. Burke, Srini Venkastesh
  • Publication number: 20130202547
    Abstract: Ophthalmic composition that includes 0.05% w/v to 2% w/v diglycine or a salt thereof; 0.01 ppm to 3 ppm poly(hexamethylene biguanide); 1 ppm to 10 ppm ?-[4-tris(2-hydroxyethyl)ammonium chloride-2-butenyl]poly[1-dimethylammonium chloride-2-butenyl]-?-tris(2-hydroxyethyl)ammonium chloride; and 0.1% w/v to 2% w/v of one or more boron buffering compounds.
    Type: Application
    Filed: February 6, 2012
    Publication date: August 8, 2013
    Inventors: Susan E. Burke, Erning Xia, Catherine Scheuer, Srini Venkastesh
  • Patent number: 8138156
    Abstract: Ophthalmic composition comprising one or more polyglycines selected from the group consisting of diglycine, triglycine, tetraglycine and pentaglycine, or the salts of each thereof and one or more boron buffering compounds. The ophthalmic composition will have an osmolality of from 200 mOsmol/kg to 420 mOsmol/kg.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: March 20, 2012
    Assignee: Bausch & Lomb Incorporated
    Inventors: Susan E. Burke, Erning Xia, Catherine Scheuer, Srini Venkastesh
  • Publication number: 20090291073
    Abstract: Compositions for treating or controlling: (i) an eye condition, disorder, or disease, or (ii) a degeneration of a component of an optic nerve system in a subject, comprise a PKC-? inhibitor. The compositions can further include an anti-inflammatory or anti-glaucoma medicament. Such a condition or degeneration has an inflammatory component.
    Type: Application
    Filed: May 20, 2008
    Publication date: November 26, 2009
    Inventors: Keith W. Ward, Srini Venkastesh
  • Publication number: 20090196845
    Abstract: Ophthalmic compositions that comprise 0.1 ppm to 50 ppm of a cationic antimicrobial component selected from the group consisting of biguanides, polymeric biguanides, quaternium ammonium compounds and any one mixture thereof; 0.005 wt. % to 2 wt. % of an anionic biopolymer; and 0.01 wt. % to 2 wt. % of an amphoteric surfactant of general formula I wherein R1 is R or —(CH2)n—NHC(O)R, wherein R is a C8-C30alkyl optionally substituted with hydroxyl and n is 2, 3 or 4; R2 and R3 are each independently selected from C1-C4alkyl; R4 is a C2-C8alkylene optionally substituted with hydroxyl; and Y is CO2? or SO3. The invention is also direct to the use of the ophthalmic compositions to clean and disinfect contact lenses, and in particular, soft, silicone hydrogel contact lenses.
    Type: Application
    Filed: January 31, 2008
    Publication date: August 6, 2009
    Inventors: Erning Xia, Susan E. Burke, Srini Venkastesh, Vicki Barniak, Praveen Tyle
  • Publication number: 20090082337
    Abstract: Compositions for treating or controlling infections comprise a fluoroquinolone having Formulae I-VIII and have a pH in the range from about 3.5 to about 5.5 or from about 10.5 to about 12. Methods for treating or controlling such infection use such compositions. Such compositions and methods can deliver a higher amount of the fluoroquinolone to the affected site.
    Type: Application
    Filed: September 8, 2008
    Publication date: March 26, 2009
    Inventors: Srini Venkastesh, Hongna Wang, Erning Xia, Matthew S. Jonasse
  • Publication number: 20080312182
    Abstract: An ophthalmic composition comprising 0.5 ppm to 3 ppm of poly(hexamethylene biguanide), and 0.002 wt. % to 0.03 wt. % of hyaluronic acid. The weight ratio of hyaluronic acid to poly(hexamethylene biguanide) in the composition is from 45:1 to 120:1. The invention is also directed to a method of cleaning, disinfecting or packaging contact lenses with the composition, or to a method of rewetting contact lenses with the composition.
    Type: Application
    Filed: April 25, 2008
    Publication date: December 18, 2008
    Inventors: Susan E. Burke, Srini Venkastesh
  • Publication number: 20080096966
    Abstract: Ophthalmic composition comprising one or more polyglycines selected from the group consisting of diglycine, triglycine, tetraglycine and pentaglycine, or the salts of each thereof and one or more boron buffering compounds. The ophthalmic composition will have an osmolality of from 200 mOsmol/kg to 420 mOsmol/kg.
    Type: Application
    Filed: October 17, 2007
    Publication date: April 24, 2008
    Inventors: Susan Burke, Erning Xia, Catherine Scheuer, Srini Venkastesh