Patents by Inventor Stanley H. Pine

Stanley H. Pine 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).

  • Synthetic polymer for endocapsular lens replacement
    Patent number: 4919151
    Abstract: A synthetic polymer (24) is provided for endocapsular lens (18) replacement in an eye (10). The polymer, whch is injected into the lens capsule (16) after removal of the lens, comprises an oxygen-stabilized photosensitive prepolymer. An example of such a prepolymer comprises polyether with urethane linkages with one or both ends capped with a functional group containing at least one double bond, such as an acrylate, a methacrylate, or a styrene.The polymerization reaction is initiated with a photoinitiator such as dimethoxyphenylacetophenone and is quenched in the presence of oxygen. Contrary to the prior art polymers, the time of curing is on the order of only a minute or so. The viscosity and thickness of the polymer formed may be tailored to achieve a desired index of refraction of between about 1.3 and 1.6.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: April 24, 1990
    Assignee: California Institute of Technology
    Inventors: Robert H. Grubbs, Robert J. Coots, Stanley H. Pine