Patents Represented by Attorney, Agent or Law Firm Inna Y. Belopolsky, Esq.
  • Gene encoding a putive efflux protein for solvents/antibiotics in Pseudomonas mendocina
    Patent number: 6410265
    Abstract: This invention relates to the isolation of a novel putative efflux gene from Pseudomonas mendocina. The putative efflux gene is useful for probing an organism's efflux system to gain an understanding of the mechanisms of solvent tolerance. The invention further provides a Pseudomonas mendocina strain deficient in this gene. This strain is unable to grow in the presence of chloramphenicol and, compared to the wildtype strain, grows slowly in the presence of high concentrations of PHBA.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: June 25, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Kevin Keqin Chen
  • Phosphole and diphosphole ligands for catalysis
    Patent number: 6350903
    Abstract: Novel reactions used to prepare phosphole and bisphosphole compounds are detailed. Novel phosphole compounds and metal coordination compounds of phosphole and bisphosphole compounds are also provided. These metal coordination compounds are useful as catalysts for the polymerization or olefins with carbon monoxide and for the polymerization of acrylic monomers.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: February 26, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Paul J. Fagan, George Yanwu Li, Zhibin Guan, Lin Wang
  • Enzymes involved in degradation of branched-chain amino acids
    Patent number: 6348339
    Abstract: This invention relates to an isolated nucleic acid fragment encoding a branched-chain amino acid degradation enzymes. The invention also relates to the construction of a chimeric gene encoding all or a portion of the branched-chain amino acid degradation enzymes, in sense or antisense orientation, wherein expression of the chimeric gene results in production of altered levels of the branched-chain amino acid degradation enzymes in a transformed host cell.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: February 19, 2002
    Assignee: E.I . du Pont de Nemours and Company
    Inventors: Rebecca E. Cahoon, William D. Hitz, Anthony J. Kinney, J. Antoni Rafalski