Patents by Inventor Alok Singh

Alok Singh 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: 4877501
    Abstract: Method and process for forming selected microstructures having predetermined shape and dimension from surfactants comprising the steps of: selecting a lipid which self aggregates into a predetermined microstructure selected from the group of helices and tubules; selecting a lipid solvating organic solvent; dissolving the selected lipid in the selected organic solvent; adding a predetermined amount of non-solvent to the selected organic solvent; and allowing the solution to sit for a predetermined period of time at a predetermined temperature.
    Type: Grant
    Filed: February 6, 1987
    Date of Patent: October 31, 1989
    Inventors: Joel M. Schnur, Ronald Price, Paul Yager, Paul Schoen, Jacque H. Georger, Alok Singh
  • Patent number: 4867917
    Abstract: A method for synthesizing a diynoic acid having the formula CH.sub.3 (CH.sub.2).sub.n --C.tbd.C--C.tbd.C--(CH.sub.2).sub.m CO.sub.2 H comprising the steps of: selecting a one-halo alkyne from the group consisting of CH.sub.3 (CH.sub.2).sub.n C.tbd.CX, where X is a selected halogen; selecting an omega-alkynoic acid having the formula, HC.tbd.C(CH.sub.2).sub.m CO.sub.2 H; dissolving the alkynoic acid in an aqueous solution of base; adding a catalytic amount of cuprous halide dissolved in an aqueous solution of alkylamine to the aqueous solution of alkynoic acid; adding a reducing agent to the solution of alkynoic acid and cuprous halide; adding the one-halo alkyne to the solution; adding as much more of the reducing agent to the solution as is necessary to maintain the cuprous ion in the cuprous state; wherein m is selected from the group of 5, 6, 7, 8, 9, 10, and 11, and n is selected from the group of 7, 8, 9, 10, 11, 12, 13, 14, 15, and 16.
    Type: Grant
    Filed: December 24, 1986
    Date of Patent: September 19, 1989
    Inventors: Joel M. Schnur, Alok Singh