Patents by Inventor Birgit Blankemeyer-Menge

Birgit Blankemeyer-Menge 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 mild esterification of a carboxylic acid with an alcohol component
    Patent number: 5147929
    Abstract: The invention relates to a process for mild esterification of a sensitive carboxylic acid, in particular a suitably protected amino acid, with an alcohol component, the esterification according to the invention being carried out in the presence of 2,4,6-mesitylene-1-sulfonyl-3-nitro-1,2,4-triazolide (MSNT) and a weak base in an aprotic and non-basic solvent.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: September 15, 1992
    Assignee: Gesellschaft fur Biotechnologische Forschung GmbH
    Inventors: Birgit Blankemeyer-Menge, Ronald Frank