Patents by Inventor Gregory C. C. Niu

Gregory C. C. Niu 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).

  • Hydrophilic contact lens made from polysiloxanes which are thermally bonded to polymerizable groups and which contain hydrophilic sidechains
    Patent number: 4260725
    Abstract: A water absorbing, soft, hydrophilic, flexible, hydrolytically stable, biologically inert contact lens with the capability of transporting oxygen sufficiently to meet the requirements of the human cornea comprising a polysiloxane which is .alpha.,.omega. terminally bonded through divalent hydrocarbon groups to polymerizably activated unsaturated groups and which contain hydrophilic sidechains is disclosed.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: April 7, 1981
    Assignee: Bausch & Lomb Incorporated
    Inventors: Philip L. Keogh, Jay F. Kunzler, Gregory C. C. Niu
  • Hydrophilic contact lens made from polysiloxanes containing hydrophilic sidechains
    Patent number: 4259467
    Abstract: A hydrolytically stable, biologically inert, transparent, hydrophilic, contact lens comprising a polysiloxane containing hydrophilic sidechains is disclosed.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: March 31, 1981
    Assignee: Bausch & Lomb Incorporated
    Inventors: Philip L. Keogh, Jay F. Kunzler, Gregory C. C. Niu