Patents by Inventor Charles D. Shively

Charles D. Shively 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).

  • Ophthalmic solution
    Patent number: 4409205
    Abstract: An ophthalmic aqueous solution having an ionic salt ion content within the range 0.01% to 7.5% expressed as sodium chloride equivalents and comprising a non-ionic synthetic polymer such as polyvinyl alcohol and/or polyethylene glycol, and a non-ionic tonicity adjusting agent. The solution is effective in treating "dry eye" conditions by causing a normalization of irregularly structured tears and at least retarding the precipitation of potein-like substances from the aqueous layers thereof.
    Type: Grant
    Filed: January 16, 1981
    Date of Patent: October 11, 1983
    Assignee: Cooper Laboratories, Inc.
    Inventor: Charles D. Shively
  • Ophthalmic solution
    Patent number: 4039662
    Abstract: Ophthalmic solution suitable as an artificial tear material of low viscosity containing a polysaccharide and benzalkonium chloride.
    Type: Grant
    Filed: December 4, 1975
    Date of Patent: August 2, 1977
    Assignee: Alcon Laboratories, Inc.
    Inventors: Gerald Hecht, Charles D. Shively