Patents by Inventor Moshe Rudolf Bloch

Moshe Rudolf 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).

  • Novel flame retardants and their production by chlorobromination of wood pulp waste liquors
    Patent number: 3962208
    Abstract: Novel chloro-brominated sulfurated lignin products obtained by chlorobromination of wood pulp waste liquors, having a total halogen content of from about 18 to about 40% by weight and a w:w Br:Cl ratio of from about 1:1 to about 5:1. The novel substances are used for flame proofing inflammable materials.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: June 8, 1976
    Assignee: The State of Israel, Ministry of Commerce & Industry
    Inventors: Esther Zeigerson, Moshe Rudolf Bloch