Patents by Inventor Mahmoud T. Dajani

Mahmoud T. Dajani 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).

  • Water clarification process
    Patent number: RE29241
    Abstract: 1. A process for clarifying water which has solid materials suspended therein and which has at least 0.1 ppm of residual chlorine comprising the steps of adding a minor amount of a .Iadd.condensation .Iaddend.polymer .[..[.of ammonia and ethylene dichloride.]..]. .Badd.selected from the group consisting of ammonia and polyalkylene polyamine with epichlorohydrin, and ammonia with ethylene dichloride .Baddend.which contains a plurality of basic nitrogen sites in form of quaternary groups to said water to coagulate said suspended solids, and thereafter separating said solids from said water.
    Type: Grant
    Filed: May 30, 1975
    Date of Patent: May 31, 1977
    Assignee: Nalco Chemical Company
    Inventor: Mahmoud T. Dajani