Patents Assigned to Hydron, Ltd.
  • Process for preparing soft tinted lenses
    Patent number: 6048371
    Abstract: A process for preparing a soft, tinted lens is described. The process comprises the steps of softening and tinting a xerogel lens 1, wherein the softening and the tinting are achieved by immersing the xerogel lens 1 in a single solution 5 capable of softening and tinting the xerogel lens 1.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: April 11, 2000
    Assignee: Hydron, Ltd.
    Inventor: Wade Marcel Tipton