Patents by Inventor Alexander Borisovich Shtarov

Alexander Borisovich Shtarov 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).

  • Purification of fluorinated alcohols
    Patent number: 7138551
    Abstract: A process for reducing the level of perfluoroalkanoic acids, perfluoroalkanoic esters, and perfluoroalkyliodides in fluorinated alcohols comprising heating a fluorinated alcohol, or mixtures thereof, containing said acids, esters, or iodides to a temperature of at least 175° C. in the presence of water and a base additive is disclosed.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: November 21, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Alexander Borisovich Shtarov, Stephen James Getty, Axel Hans-Joachim Herzog