Patents by Inventor Fateme S. Sariaslani

Fateme S. Sariaslani 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).

  • Enzymatic process for the preparation of chiral .alpha.-tertiary carboxylic acid esters
    Patent number: 5580783
    Abstract: This invention provides a process for enrichment of enantiomers of .alpha.-tertiary carboxylic acid esters from mixtures of corresponding esters using a biocatalyst comprising microbial cells, or partially or highly purified enzyme preparations. The enantiomeric ester products are useful as intermediates for the preparation of pharmaceutically and agriculturally active compounds.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: December 3, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Fateme S. Sariaslani, Barry Stieglitz, Vincent G. Witterholt
  • Microbially mediated degradation of nitrogen-containing phenol compounds
    Patent number: 5543324
    Abstract: Nitrogen-containing phenol compounds are biodegradable by a consortium of microorganisms. The consortium was isolated from waste sludge by successive subculturing into medium containing picric acid as the only carbon source. During the period of degradation, picric acid was seen to degrade to a colored intermediate which later disappeared. UV-Vis spectrometry, HPLC and GC-mass spectrophotometry showed that the entire ring structure was eventually destroyed. The consortium contains microorganisms from the genera Arthrobacter, Avrobacterium and Pseudomonas.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: August 6, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Janardhanan S. Rajan, Fateme S. Sariaslani
  • Microbially mediated degradation of nitrogen-containing phenol compounds by single bacterial isolates
    Patent number: 5478743
    Abstract: The invention relates to Arthrobacter bacterial isolates capable of degrading picric acid and related compounds to the point where no aromatic ring-containing degradation products can be detected, as determined by HPLC profiles, UV-V spectrometry, analysis of total organic carbon and mineralization of .sup.14 C-picric acid. The isolates were derived from enrichments of bacterial cultures from waste sludge by successive subculturing into medium containing picric acid as the only carbon source.
    Type: Grant
    Filed: March 11, 1994
    Date of Patent: December 26, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Richard E. Perkins, Janardhanan S. Rajan, Fateme S. Sariaslani
  • Constitutive expression of P450soy and ferredoxin-soy in Streptomyces
    Patent number: 5466590
    Abstract: The present invention provides a method of making a recombinant organism capable of oxidizing organic chemicals by constitutive production of proteins capable of performing oxidation. A recombinant organism and a method of oxidizing organic chemicals are also provided. The present invention is useful in bioremediation to remove waste chemicals from the environment.
    Type: Grant
    Filed: August 6, 1993
    Date of Patent: November 14, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Fateme S. Sariaslani, Michael K. Trower, Charles A. Omer
  • Process for inducing cytochrome P-450 enzymes in Streptomyces bacteria and determining the mutagenicity of chemicals
    Patent number: 5213971
    Abstract: A process for inducing cytochrome P-450 enzyme production in bacteria of the genus Streptomyces using inducers such as soybean flour, genistein or genistin is described. Uses for the cytochrome P-450 enzymes produced are also discussed as is a process for using genetically engineered Streptomyces to determine the mutagenicity of chemicals.
    Type: Grant
    Filed: August 28, 1991
    Date of Patent: May 25, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Daniel A. Kunz, Fateme S. Sariaslani
  • Process for inducing cytochrome P-450 enzymes in streptomyces bacteria and determining the mutagenicity of chemicals
    Patent number: 5169755
    Abstract: A process for inducting cytochrome P-450 enzyme production in bacteria of the genus Streptomyces using inducers such as soybean flour, genistein or genistin is described. Uses for the cytochrome P-450 enzymes produced are also discussed as is a process for using genetically engineered Streptomyces to determine the mutagenicity of chemicals.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: December 8, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Fateme S. Sariaslani, Steven E. Buchholz, Charles A. Omer, Paul V. Viitanen