Patents by Inventor Werner Obendorf

Werner Obendorf 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).

  • Device for selective flow connection of exhaust piping of cutting tools to an exhaust fan
    Patent number: 6431206
    Abstract: A device for selective flow connection of exhaust piping of cutting machinery having an exhaust fan is described, comprising a distributor connected on one side to the exhaust fan and on the other side to the exhaust piping and comprising a switching device for closing and opening the exhaust piping connected to the distributor.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: August 13, 2002
    Inventor: Werner Obendorf
  • Device for selective flow connection of exhaust piping of cutting tools to an exhaust fan
    Publication number: 20010047830
    Abstract: A device for selective flow connection of exhaust piping of cutting machinery having an exhaust fan is described, comprising a distributor connected on one side to the exhaust fan and on the other side to the exhaust piping and comprising a switching device for closing and opening the exhaust piping connected to the distributor.
    Type: Application
    Filed: February 8, 2001
    Publication date: December 6, 2001
    Inventor: Werner Obendorf
  • N-acyl derivatives of 3-amino-2,4,6-triiodobenzoic acid
    Patent number: 4152526
    Abstract: N-acyl derivatives of 3-amino-2,4,6-triiodobenzoic acid having the formula ##STR1## in which R.sub.1 is hydrogen, alkyl of up to 4 carbon atoms, alkoxyalkyl of 2-5 carbon atoms or alkoxyalkoxyalkyl of 3-8 carbon atoms, R.sub.2 is alkylene of up to 5 carbon atoms, R.sub.3 is alkylene of up to 3 carbon atoms, R.sub.4 is alkyl of up to 6 carbon atoms, X is straight chain or branched alkylene with two or three carbon atoms in the main chain and n is 0, 1 or 2 and the pharmaceutically acceptable salts thereof, which are useful as X-ray contrast media for intravenous cholecystographie.
    Type: Grant
    Filed: August 31, 1977
    Date of Patent: May 1, 1979
    Assignee: Chemie Linz Aktiengesellschaft
    Inventors: Werner Obendorf, Ernst Schwarzinger
  • Derivatives of triiodo-aminobenzenecarboxylic acids and the preparation thereof
    Patent number: 4025550
    Abstract: Derivatives of triiodo-aminobenzene carboxylic acids having the general formula: ##STR1## a process for their preparation and X-ray contrast agents containing them.
    Type: Grant
    Filed: March 28, 1975
    Date of Patent: May 24, 1977
    Assignee: Chemie Linz Aktiengesellschaft
    Inventors: Werner Obendorf, Irmgard Lindner, Ernst Schwarzinger, Josef Krieger