Patents by Inventor Manohar K. Raheja

Manohar K. Raheja 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).

  • Preservative system for contact lens solutions
    Patent number: 5453435
    Abstract: A preservative system for ophthalmic solutions, particularly contact lens solutions, comprises:(a) chlorhexidine or a water-soluble salt thereof; and(b) polyhexamethylene biguanide or a water-soluble salt thereof.
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: September 26, 1995
    Assignee: Polymer Technology Corporation
    Inventors: Manohar K. Raheja, Stanley J. Wrobel
  • Method for improving antibacterial properties of ophthalmic solutions
    Patent number: 5320843
    Abstract: A method for improving the antibacterial efficacy of an ophthalmic solution, particularly a solution for the care of contact lenses, comprises providing an article molded from a plastic resin including an inorganic carrier retaining antibacterial metal ions, and placing the ophthalmic solution in contact with the plastic resin.
    Type: Grant
    Filed: December 10, 1992
    Date of Patent: June 14, 1994
    Assignee: Polymer Technology Corporation
    Inventors: Manohar K. Raheja, Stanley J. Wrobel
  • Contact lens cleaning and conditioning pouch and method of use
    Patent number: 5088146
    Abstract: A product and method of cleaning or conditioning contact lenses is provided. Lens cleaning or conditioning is accomplished in a pouch having first and second walls between which the contact lens can be inserted along with a cleaning or conditioning solution and gently manipulated to clean or condition the contact lens surface.
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: February 18, 1992
    Assignee: Polymer Technology Corporation
    Inventors: Francis X. Smith, Stanley J. Wrobel, Manohar K. Raheja