Patents by Inventor Krzysztof Sienkiewicz

Krzysztof Sienkiewicz 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 hydroxylation of electrophilic aromatic compounds
    Patent number: 4962198
    Abstract: The invention relates to a generally applicable process for the hydroxylation of electrophilic aromatic compounds, according to which the electrophilic aromatic compounds are reacted with organic hydroperoxides in the presence of bases.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: October 9, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Mieczyslaw Makosza, Krzysztof Sienkiewicz