Patents by Inventor Talit Ghaffar

Talit Ghaffar 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).

  • Catalyst and process for preparing amides
    Patent number: 6133478
    Abstract: A platinum complex useful as a catalyst for converting nitrites into amides comprises a platinum complex of dialkyl phosphine of stoichiometric formula: PtX(R.sub.2 POHOPR.sub.2)(PR.sub.2 OH) where R is an alkyl, alicyclic, chiral, alkylaryl group or substituted alkyl, alicyclic, chiral, alkaryl group or the two R groups attached to one phosphorous atom can form a heterocyclic ring with the phosphorous atom and X is H or a halide. The conversion takes place under reflux conditions to give a high yield of the amide.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: October 17, 2000
    Inventors: Adrian W Parkins, Talit Ghaffar
  • Catalyst and process for preparing amides
    Patent number: 5932756
    Abstract: A platinum complex useful as a catalyst for converting nitriles into amides comprises a platinum complex of dialkyl phosphine of stoichiometric formula: PtX(R.sub.2 POHOPR.sub.2)(PR.sub.2 OH) were R is an alkyl, alicyclic, chiral, alkylaryl group or substituted alkyl, alicyclic, chiral, alkaryl group or the two R groups attached to one phosphorus atom can form a heterocyclic ring with the phosphorus atom and X is H or a halide. The conversion takes place under reflux conditions to give a high yield of the amide.
    Type: Grant
    Filed: September 10, 1997
    Date of Patent: August 3, 1999
    Inventors: Adrian W Parkins, Talit Ghaffar