Patents by Inventor Susan P. Spooner

Susan P. Spooner 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).

  • Composition and method for inhibiting of protein on contact lens
    Patent number: 6323165
    Abstract: The invention is directed to compositions and methods used as in-the-eye and/or out-of-eye inhibitors of proteinaceous deposits on hydrophilic contact lenses. Compositions of the present invention comprise moderately charged polyquaternium polymers that selectively bind to hydrophilic contact lenses to block the binding of proteinaceous materials. Compositions of the present invention may be used in multipurpose cleaning solutions for contact lenses and can eliminate the need for special enzyme cleaners and the like for removing proteinaceous materials.
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: November 27, 2001
    Assignee: Bausch & Lomb Incorporated
    Inventors: David J. Heiler, Stephen E. Maier, Susan P. Spooner
  • Compositions comprising polyquaterniums in combination with polymeric biguanides for disinfecting contact lenses
    Patent number: 6153568
    Abstract: The present invention is directed to an ophthalmically safe disinfecting solution for contact lenses comprising the combination of a polymeric biguanide and a polyquaternium polymer of a substituted or unsubstituted vinylimidazole or its vinylimidazoliuum salt, which copolymer has a weight average molecular weight of 5,000 to 5,000,000. The invention is also directed to an improved method of disinfecting a contact lens.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: November 28, 2000
    Inventors: David J. McCanna, Stephen E. Maier, David J. Heiler, Susan P. Spooner, Erning Xia
  • Method for inhibiting the deposition of protein on contact lens
    Patent number: 6096138
    Abstract: The invention is directed to compositions and methods used as in-the-eye and/or out-of-eye inhibitors of proteinaceous deposits on hydrophilic contact lenses. Compositions of the present invention comprise moderately charged polyquaternium polymers that selectively bind to hydrophilic contact lenses to block the binding of proteinaceous materials. Compositions of the present invention may be used in multipurpose cleaning solutions for contact lenses and can eliminate the need for special enzyme cleaners and the like for removing proteinaceous materials.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: August 1, 2000
    Assignee: Bausch & Lomb Incorporated
    Inventors: David J. Heiler, Stephen E. Maier, Susan P. Spooner
  • Treatment of contact lenses with an aqueous solution including pyrrolidone compounds
    Patent number: 5922279
    Abstract: The present invention provides methods for treating contact lenses and compositions for the same. The present invention includes contacting a lens with an aqueous solution comprising a pyrrolidone compound represented by the formula: ##STR1## wherein: R is a hydrogen or an alkyl group having from 1 to 6 carbon atoms. In preferred embodiments of the invention, the subject compounds are used in combination with antimicrobial agents for providing simultaneous disinfection and cleaning of contact lenses.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: July 13, 1999
    Assignee: Bausch & Lomb Incorporated
    Inventor: Susan P. Spooner