Patents by Inventor Abdul R. Khokhar

Abdul R. Khokhar 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: 4661516
    Abstract: Diaminocyclohexane platinum complexes having the structural formula ##STR1## wherein: X is a monovalent anion selected from the group consisting of isoascorbate, monosaccharate, saccharate-4-lactone, shikimate, isethionate, 2-aminoethylsulfate, azetidinecarboxylate, proline, hydroxyproline, pipecolinate, cyclopropanecarboxylate, cyclobutanecarboxylate, cyclopentanecarboxylate, cyclopentenecarboxylate, cyclohexanecarboxylate, cyclohexenecarboxylate, bicine, glycine, 2-aminoethanesulfonate, 2-chloroethanesulfonate andY is a divalent anion selected from the group consisting of iminodiacetate, isocitratelactone, furanedicarboxylate, cyclopropane-1,1-dicarboxylate, isocitratomonoethylester, N-methyliminodiacetate, N-(2-hydroxyethyl)-iminodiacetate, N-benzyliminodiacetate, N-phenyliminodiacetate, N-(2-acetamido)iminodiacetate, cyclohexane-1,1-diacetate, trans-1,2-cyclopropanedicarboxylate, trans-1,2-cyclobutanedicarboxylate, trans-1,2-cyclopentanedicarboxylate and trans-1,2-cyclohexanedicarboxylateand their use in
    Type: Grant
    Filed: April 15, 1985
    Date of Patent: April 28, 1987
    Assignee: Research Corporation
    Inventors: David B. Brown, deceased, Abdul R. Khokhar, Miles P. Hacker, John J. McCormack
  • Patent number: 4182724
    Abstract: This invention relates to a compound of platinum having the structure: ##STR1## in which X and Y are halogenoid groups which are the same or different and are preferably both chloride but may be other halide or pseudohalide such as cyanate, thiocyanate and azide or other similar groups, and A and B are the same or different and are selected from the group consisting of ammonia, NH.sub.3 and straight chain aliphatic amine groups co-ordinated to the Pt through their N atoms.
    Type: Grant
    Filed: August 18, 1978
    Date of Patent: January 8, 1980
    Assignee: Rustenburg Platinum Mines Limited
    Inventors: Martin L. Tobe, Abdul R. Khokhar, Peter D. M. Braddock
  • Patent number: RE30971
    Abstract: This invention relates to a compound of platinum having the structure: ##STR1## in which X and Y are halogenoid groups which are the same or different and are preferably both chloride but may be other halide or pseudohalide such as cyanate, thiocyanate and azide or other similar groups, and A and B are the same or different branched chain aliphatic amine groups co-ordinated to the Pt through their N atoms.
    Type: Grant
    Filed: February 20, 1980
    Date of Patent: June 15, 1982
    Assignee: Rustenburg Platinum Mines Limited
    Inventors: Martin L. Tobe, Abdul R. Khokhar, Peter D. M. Braddock