Patents by Inventor Guray Tosun

Guray Tosun 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).

  • Process for making finely divided particles of silver metals
    Patent number: 5188660
    Abstract: A reductive process for making finely divided silver particles in which the silver particles are precipitated from an aqueous acid solution of silver salt containing silica sol.
    Type: Grant
    Filed: October 16, 1991
    Date of Patent: February 23, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Guray Tosun, Howard D. Glicksman
  • Process for making finely divided particles of silver metal
    Patent number: 4979985
    Abstract: A reductive process for making finely divided silver particles in which the silver particles are precipitated from an aqueous acidic solution of silver salt, gelatin and alkyl acid phosphate.
    Type: Grant
    Filed: February 6, 1990
    Date of Patent: December 25, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Guray Tosun, Howard D. Glicksman