Patents by Inventor Ludmilla Schechtmann

Ludmilla Schechtmann 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).

  • Ion exchange membranes
    Patent number: 5714521
    Abstract: The invention concerns heterogeneous ion exchange membranes used in electrodialysis which have anti-polarization and anti-fouling properties.The heterogeneous membranes of the invention comprise, in addition to ion-exchange particles embedded in the matrix, a layer of at least one hydrophilic cross-linked polymer bearing fixed electric charges. Alternatively, the heterogeneous membranes of the invention have a matrix which is itself made of at least one hydrophilic cross-linked polymer.
    Type: Grant
    Filed: October 3, 1996
    Date of Patent: February 3, 1998
    Assignee: Yeda Research and Development Company Ltd.
    Inventors: Ora Kedem, Ludmilla Schechtmann