Patents by Inventor Yurdagul Ozcayir

Yurdagul Ozcayir 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).

  • Modified poly(phenylene oxide) based membranes for enhanced fluid separation
    Patent number: 5348569
    Abstract: The present invention relates to composite membranes and membranes which are formed from modified poly(phenylene oxide) polymers having improved film forming properties and separation characteristics. The present invention further relates to poly(phenylene oxide) polymer and modified poly(phenylene oxide) polymer, having improved membrane forming characteristics and processes for producing the same.
    Type: Grant
    Filed: June 30, 1993
    Date of Patent: September 20, 1994
    Assignee: Praxair Technology, Inc.
    Inventors: Benjamin Bikson, Gertrud Gotz, Yurdagul Ozcayir, Joyce K. Nelson
  • Semipermeable membranes based on certain sulfonated substituted polysulfone polymers
    Patent number: 5071448
    Abstract: Semipermeable membranes comprised of certain sulfonated substituted polysulfone polymers containing the polymer repeat unit (A) or (B) as herein defined. The invention also pertains to processes for using said membranes for the selective permeation of at least one gaseous component from a mixture of gases containing said gaseous component in admixture with other gaseous components.
    Type: Grant
    Filed: December 5, 1990
    Date of Patent: December 10, 1991
    Assignee: Union Carbide Industrial Gases Technology Corporation
    Inventors: Benjamin Bikson, Joyce K. Nelson, Gertrud Gotz, Yurdagul Ozcayir
  • Sulfonated hexafluoro bis-a polysulfone membranes and process for fluid separations
    Patent number: 4971695
    Abstract: Sulfonated hexafluoro bis-A-polysulfone membranes of polymers and copolymers having the repeat unit of the structure; ##STR1## in the polymer molecule that exhibit improved permeation and separation characteristics and processes for the use thereof for separation of a component from a fluid mixture of said component in admixture with other components.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: November 20, 1990
    Assignee: Union Carbide Industrial Gases Technology Corporation
    Inventors: James H. Kawakami, Benjamin Bikson, Gertrud Gotz, Yurdagul Ozcayir