Patents by Inventor John Bentham

John Bentham 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).

  • Patent number: 4399050
    Abstract: A thickened aqueous bleach composition comprising(a) an alkali metal hypochloriteand (b) one or more carboxylated surfactants of formula IRO-- CH.sub.2 CH.sub.2 O ].sub.n R.sub.1 --COO.crclbar.A.sym.Iin whichR is a straight chain C.sub.6-20 alkyl, phenyl, a straight or branched chain C.sub.7-30 alkaryl or a straight or branched chain C.sub.7-30 aralkyl, unsubstituted or substituted with substituents unreactive to hypochlorite,R.sub.1 is C.sub.1-4 alkylene,A.sym. is hydrogen ion, an alkali metal cation, or an equivalently charged amount of an alkaline earth metal cation and n is 0.5 to 45. Additionally free ethoxylate can be present in the mixture together with further bleach additives including perfumes.
    Type: Grant
    Filed: May 13, 1981
    Date of Patent: August 16, 1983
    Assignee: Sandoz Products Limited
    Inventors: John Bentham, Jacqueline A. Coates, David L. Connell