Patents by Inventor Heinz J. Dietrich

Heinz J. Dietrich 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).

  • Liquid crystal or mesomorphic 4-methoxyalkoxy-4'-alkyl azoxybenzene compounds
    Patent number: 4005064
    Abstract: There is disclosed the preparation of novel liquid-crystal compounds of the structure: ##STR1## WHERE X AND Y ARE THE SAME OR DIFFERENT INTEGERS OF 1 TO 10, TYPICALLY 1 TO 5, AND WHERE AB is selected from ##STR2##
    Type: Grant
    Filed: May 18, 1971
    Date of Patent: January 25, 1977
    Assignee: Owens-Illinois, Inc.
    Inventors: Heinz J. Dietrich, Edward L. Steiger
  • Novel liquid-crystal compounds
    Patent number: 4000124
    Abstract: There is disclosed the preparation of novel liquid-crystal compounds of the structure: ##STR1## WHERE X AND Y ARE THE SAME OR DIFFERENT INTEGERS OF 1 TO 10, TYPICALLY 1 TO 5.
    Type: Grant
    Filed: May 18, 1971
    Date of Patent: December 28, 1976
    Assignee: Owens-Illinois, Inc.
    Inventors: Edward L. Steiger, Heinz J. Dietrich