Patents by Inventor R. Schuffenecker

R. Schuffenecker 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).

  • Polyaluminumchlorosulfates and preparation and uses thereof
    Patent number: 5348721
    Abstract: The invention relates to high basicity polyaluminumchlorosulfates and their preparation process, said polyaluminumchlorosulfates being useful in the treatment of drinking water, aqueous effluents, and in the papermaking industry and having the formula:Al(OH).sub.a Cl.sub.b (SO.sub.4).sub.c M.sub.d N.sub.ein which:M is an alkaline-earth metal;N is an alkaline metal;a, b, c, d and e are numbers such that:1.95<a<2.4; 0<c<0.15; 0<d<0.16;0<e<1.7; a+b+2c=3+2d+e.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: September 20, 1994
    Assignee: Elf Atochem S.A.
    Inventors: J. D. Murphy, R. Schuffenecker, H. Suty