Patents by Inventor Sergi V. Levchik

Sergi V. Levchik 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).

  • Process for the alkylation of phosphorus-containing compounds
    Patent number: 8097747
    Abstract: A process for alkylating a phosphorus-containing compound to provide an alkylated phosphorus-containing compound is provided which comprises alkylating 5 phosphorus-containing compound possessing at least one phosphorus-hydrogen alkylatable site with reactant which generates alkene and/or cycloalkene alkylating agent in situ in the presence of initiator, the alkylene and/or cycloalkylene alkylating agent alkylating the phosphorus-containing component to provide alkylated phosphorus-containing product.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: January 17, 2012
    Assignee: ICL-IP America Inc
    Inventors: Qiang Yao, Sergi V. Levchik
  • Process for the alkylation of phosphorus-containing compounds
    Publication number: 20090054675
    Abstract: A process for alkylating a phosphorus-containing compound to provide an alkylated phosphorus-containing compound is provided which comprises alkylating 5 phosphorus-containing compound possessing at least one phosphorus-hydrogen alkylatable site with reactant which generates alkene and/or cycloalkene alkylating agent in situ in the presence of initiator, the alkylene and/or cycloalkylene alkylating agent alkylating the phosphorus-containing component to provide alkylated phosphorus-containing product.
    Type: Application
    Filed: April 22, 2005
    Publication date: February 26, 2009
    Applicant: SUPRESTA LLCC
    Inventors: Qiang Yao, Sergi V. Levchik