Patents by Inventor Abolghassem Eskamani

Abolghassem Eskamani 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).

  • Polymers derived from .alpha., .beta.-unsaturated polycarboxylic acids or anhydrides and n-substituted acrylamides, and use in reducing scale
    Patent number: 5164468
    Abstract: Polymers are disclosed which comprise the reaction product of (A) at least about 60 weight percent of at least one .alpha., .beta.-unsaturated polycarboxylic acid or anhydride; and (B) about 0.5 to about 40 weight percent of at least one acrylamide represented by the formula VI:CH.sup.2 .dbd.C(R.sup.5)C(O)N(R.sup.6)R.sup.7 (VI)wherein R.sup.5, R.sup.6 and R.sup.7 are each independently hydrogen or lower alkyl groups provided that at least one of R.sup.6 and R.sup.7 is a lower hydro-carbyl group, and further provided that the mixture is free of a vinyl sulfonic acid. The monomers react at elevated temperatures to form polycarboxylate scale inhibitors having a number average molecular weight of from about 400 to 10,000. The polymers have particular application in the inhibition of scales during oil field operations, but also may be employed in any environment where deposition of mineral scales is undesirable.
    Type: Grant
    Filed: September 5, 1990
    Date of Patent: November 17, 1992
    Assignee: The Standard Oil Company
    Inventors: Lawrence E. Ball, Abolghassem Eskamani, Eleanor J. Fendler
  • Process for the thermochemical conversion of biomass
    Patent number: 4536584
    Abstract: A process is provided for the thermochemical conversion of biomass to useful gaseous and liquid organic products. The inventive process utilizes a catalyst to obtain increased yields of gaseous and liquid organic products and decreased yields, if any, of solid and semisolid tar/oils.
    Type: Grant
    Filed: October 3, 1983
    Date of Patent: August 20, 1985
    Assignee: The Standard Oil Company (Ohio)
    Inventors: Abolghassem Eskamani, Warren H. Krause
  • Photochemical decarboxylation of a metal salt of an alpha-hydroxy carboxylic acid
    Patent number: 4450059
    Abstract: A process is provided for the photochemical decarboxylation of a metal salt of an alpha-hydroxy carboxylic acid to form the corresponding alcohol wherein the alpha-hydroxy carboxylic acid metal salt is exposed to light in the absence of a photosensitizing agent.
    Type: Grant
    Filed: September 2, 1983
    Date of Patent: May 22, 1984
    Assignee: The Standard Oil Company
    Inventors: Abolghassem Eskamani, Helen D. Dernar, Rosemary Bartoszek-Loza
  • Electrochemical conversion of biomass
    Patent number: 4341609
    Abstract: A process for converting plant biomass to its constituent parts of lignin, cellulose and hemicellulose and further derivatives comprises treating the biomass in the anodic section of an electrochemical cell in the presence of an electrolyte solution. The rate of enzymatic cellulose hydrolysis of treated biomass is enhanced.
    Type: Grant
    Filed: February 26, 1981
    Date of Patent: July 27, 1982
    Assignee: The Standard Oil Company
    Inventors: Abolghassem Eskamani, Helen D. Dernar
  • Acrolein-indene copolymers
    Patent number: 4035340
    Abstract: Thermoplastic-thermosetting polymers having good thermal stability are produced by the copolymerization of acrolein and indene.
    Type: Grant
    Filed: March 8, 1976
    Date of Patent: July 12, 1977
    Assignee: Standard Oil Company
    Inventors: Abolghassem Eskamani, Robert Sanitra
  • Acrylonitrile-acrolein-indene terpolymers
    Patent number: 4007162
    Abstract: Thermoplastic-thermosetting polymers having good gas barrier properties are prepared by the interpolymerization of acrylonitrile, acrolein and indene.
    Type: Grant
    Filed: November 13, 1975
    Date of Patent: February 8, 1977
    Assignee: Standard Oil Company
    Inventor: Abolghassem Eskamani