Patents by Inventor William A. Zisman

William A. Zisman 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).

  • Displacement of organic liquid films from solid surfaces by non aqueous systems
    Patent number: 3957672
    Abstract: A non-aqueous liquid surface-active composition for displacing aqueous or ganic liquid films from solid surfaces. The composition contains fluorinated polyethers having the formulaCF.sub.3 CF.sub.2 CF.sub.2 [OCF(CF.sub.3)CF.sub.2 ].sub.n OCHFCF.sub.3and may include a fluoro-alcohol, or a fluoro-acid a fluorinated diester solute and/or a fluorinated benzene solvent, fully fluorinated bromo- and chloro-alkane solvent or a perfluoroalkane solvent.
    Type: Grant
    Filed: November 23, 1973
    Date of Patent: May 18, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: William A. Zisman, Marianne K. Bernett