Patents by Inventor Walter Brase

Walter Brase 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 of resolving racemic mixtures
    Patent number: 6015903
    Abstract: A process for resolving racemates of compounds of the formula I ##STR1## in which a, A, B, D, E, F, M, Q and R have the meanings given in the description is described. The process is carried in a manner known per se but using the optical antipodes of derivatives of phenoxypropionic acid.Also described are salts of deprenyl, ephedrine or tetrahydropapaverine with a phenoxypropionic acid of the formula ##STR2## in which U and T have the meaning stated in the description, and which result as intermediate in the racemate resolution.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: January 18, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Viergutz, Juergen Knopff, Walter Brase