Patents by Inventor Rene Bloch

Rene Bloch 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).

  • Reverse osmosis separation process using porous asymmetric acetyl cellulose membrane
    Patent number: 4247401
    Abstract: A method for the separation of organic or metallo-organic substances from salts by reverse osmosis is provided. The membranes used are asymmetric acetyl cellulose membranes modified by covalently bonded residues of reactive dyestuffs containing ionizable groups. The diameter of the pores on the surface of the membrane is 5 to 100 A.
    Type: Grant
    Filed: August 31, 1978
    Date of Patent: January 27, 1981
    Assignee: Aligena A.G.
    Inventors: Rene Bloch, Jacov Yonath
  • Process for the cross-linking of proteins
    Patent number: 4101380
    Abstract: The invention relates to a process for the cross-linking of proteins wherein the proteins to be cross-linked are reacted with a cross-linking agent selected from the group consisting of:(a) water soluble poly(ethylene oxide) derivatives of the general formula I(z).sub.m --Y--(CH.sub.2 CH.sub.2 O).sub.n CH.sub.2 CH.sub.2 --Y--(Z).sub.
    Type: Grant
    Filed: June 11, 1976
    Date of Patent: July 18, 1978
    Assignee: Research Products Rehovot Ltd.
    Inventors: Menachem Rubinstein, Shulamit Simon, Rene Bloch, deceased
  • Controlled drug releasing preparations
    Patent number: 3965255
    Abstract: A drug delivery preparation with controlled release time and rate, comprising a therapeutic agent being encapsulated in or coated by a solvent membrane, as well as a process for the manufacture thereof, are disclosed.
    Type: Grant
    Filed: May 1, 1974
    Date of Patent: June 22, 1976
    Assignee: E. E. Eljim Ecology Ltd.
    Inventors: Rene Bloch, Ora Kedem, Ester Lobel