Patents by Inventor Manuel J. de Luque

Manuel J. de Luque 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).

  • Detergent bleach composition and process
    Patent number: 4240920
    Abstract: Combined washing and bleaching of fabrics is accomplished by use of a composition comprising a mixture of surfactant, peroxy bleach, and porphine bleach. The surfactant is anionic, nonionic, semi-polar, ampholytic, zwitterionic, or cationic in nature. The peroxy bleach is inorganic or organic. The porphine bleach is a porphine or a mono-, di-, tri-, or tetra-aza porphine, solubilized with anionic, nonionic and/or cationic substituent groups, and metal free or metallated with Zn(II), Cd(II), Mg(II), Ca(II), Al(III), Sc(III) or Sn(IV).
    Type: Grant
    Filed: February 27, 1979
    Date of Patent: December 23, 1980
    Assignee: The Procter & Gamble Company
    Inventor: Manuel J. de Luque