Patents by Inventor Wolfgang Resemann

Wolfgang Resemann 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).

  • Separation of enantiomers of cimaterol, (-)-cimaterol and the use thereof in pharmaceutical compositions and animal feeds
    Patent number: 5648386
    Abstract: The invention relates to the separation of enantiomers of cimaterol, (-)-cimaterol, the addition salts thereof and processes for preparing them and their use in pharmaceutical compositions and animal feeds.
    Type: Grant
    Filed: November 29, 1994
    Date of Patent: July 15, 1997
    Assignee: Boehringer Ingelheim Vetmedica GmbH
    Inventors: Wolfgang Resemann, Adolf Durr, Gunther Engelhardt, John Frances Quirke
  • Separation of enantiomers of cimaterol, (-)-cimaterol and the use thereof in pharmaceutical compositions and animal feeds
    Patent number: 5395957
    Abstract: The invention relates to the separation of enantiomers of cimaterol, (-)-cimaterol, the addition salts thereof and processes for preparing them and their use in pharmaceutical compositions and animal feeds.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: March 7, 1995
    Assignee: Boehringer Ingelheim Vetmedica GmbH
    Inventors: Wolfgang Resemann, Adolf Durr, Gunther Engelhardt, John F. Quirke
  • Separation of enantiomers of cimaterol, (-)-cimaterol and the use thereof in pharmaceutical compositions and animal feeds
    Patent number: 5292753
    Abstract: The invention relates to the separation of enantiomers of cimaterol, (-)-cimaterol, the addition salts thereof and processes for preparing them and their use in pharmaceutical compositions and animal feeds.
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: March 8, 1994
    Assignee: Boehringer Ingelheim Vetmedica GmbH
    Inventors: Wolfgang Resemann, Adolf Durr, Gunther Engelhardt, John F. Quirke
  • Separation of enantiomers of cimaterol, (-)-cimaterol and the use thereof in animal feeds
    Patent number: 5248695
    Abstract: The invention relates to the separation of enantiomers, of cimaterol, (-)-cimaterol, the addition salts thereof and processes for preparing them and their use in pharmaceutical compositions and animal feeds.
    Type: Grant
    Filed: April 30, 1991
    Date of Patent: September 28, 1993
    Assignee: Boehringer Ingelheim Vetmedica GmbH
    Inventors: Wolfgang Resemann, Adolf Durr, Gunther Engelhardt, John F. Quirke
  • Process for the preparation of 3-cyano-4-aminoacetophenones
    Patent number: 4581177
    Abstract: A new process is disclosed for preparing 3-cyano-4-aminoacetophenone which, starting from 3-cyano-4-acetamidoacetophenone, enables this compound to be produced on an industrial scale in high yields.3-Cyano-4-aminoacetophenone is an intermediate product for the preparation of 2-amino-5-[1-hydroxy-2-(alkyl- or dialkyl-amino)ethyl]benzonitriles which show .beta..sub.2 -mimetic activities and may be used as feed additives.
    Type: Grant
    Filed: April 17, 1985
    Date of Patent: April 8, 1986
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Wolfgang Resemann, Ferdinand Fraunberger