Patents by Inventor Slawomir W. Sapieha

Slawomir W. Sapieha 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).

  • Electrets from plasma polymerized material
    Patent number: 4407852
    Abstract: This invention relates to electrets which comprise a film of plasma polymerized dielectric material having a volumetric space charge.
    Type: Grant
    Filed: October 16, 1980
    Date of Patent: October 4, 1983
    Inventors: Slawomir W. Sapieha, Michael R. Wertheimer