Patents by Inventor Menashe Lev

Menashe Lev 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).

  • Membranes
    Patent number: 4217200
    Abstract: According to the present invention there is provided a novel type of membrane unit for use in electrodialysis comprising a heat-sealable frame framing and forming an integral entity with an electrodialysis membrane. The frame may be a regular frame, or a two-frame structure framing a single membrane. The invention further relates to electrodialysis devices such as stacks, bags, cells, spiral units and the like based on such membrane units, which are hermetically bonded by heat-sealing to similar units or to polymeric or other members.
    Type: Grant
    Filed: August 9, 1978
    Date of Patent: August 12, 1980
    Assignee: Yeda Research & Development Co. Ltd.
    Inventors: Ora Kedem, Abraham Kedem, Menashe Lev, Gerald B. Tanny, Rami Messalem