Patents by Inventor Norbert Beye

Norbert Beye 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).

  • Method for producing bisbenzoxazoles
    Patent number: 8067612
    Abstract: The invention relates to a method for producing bisbenzoxazoles that are interconnected by means of a system of conjugated double bonds, according to which o-aminophenols are reacted with dicarboxylic acids, the carboxyl groups of which are interconnected via a double bond or a system of conjugated double bonds, to form an ammonium salt, said ammonium salt being converted in the presence of dehydrogenating catalysts and solvents with a low dielectric loss into benzoxazol by means of microwave radiation.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: November 29, 2011
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Matthias Krull, Alexander Lerch, Roman Morschhaeuser, Norbert Beye, Hanspeter Gethoeffer, Helmut Ritter, Sarah Schmitz
  • N-(4-bromo-2-fluorobenzyl)carbamates and a process for their preparation
    Patent number: 5723647
    Abstract: N-(4-Bromo-2-fluorobenzyl)carbamates and a process for their preparationThe invention relates to N-(4-bromo-2-fluorobenzyl)carbamates of the formula (I), ##STR1## where R is (C.sub.1 -C.sub.12)alkyl, benzyl or phenyl, where the benzyl and phenyl radicals can also be substituted by (C.sub.1 -C.sub.3)alkyl or (C.sub.1 -C.sub.3)alkoxy, and to a process for preparing these compounds.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: March 3, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Norbert Beye, Karl-Ernst Mack