Patents by Inventor Werner Nader

Werner Nader 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 depleting viruses in solutions and determining their depletion rate
    Patent number: 5645984
    Abstract: To deplete viruses in organic material, the material to be purified is conveyed through an ultrafilter or an ultrafiltration unit the depletion rate of which is previously determined. The filter or filtration unit is charged with viruses of the family Leviviridae and the viral count is determined before and after filtration and used to derive the depletion rate. The virus depletion can be monitored during the process by following the depletion of a marker.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: July 8, 1997
    Assignee: Sanorell Pharma GmbH & Co. KG
    Inventor: Werner Nader
  • Process for the regulation of an activated sludge clarification plan
    Patent number: 5403488
    Abstract: The present invention provides a process for the regulation of the activa sludge step of a clarification plant by control of the decomposition efficiency of the activated sludge, wherein an activated sludge sample is incubated under precisely defined conditions, which are optimised with regard to the pH value, the temperature and the salt concentration, with the substrate or substrates of interest above the saturation range and, in the initial phase, the decrease of the substrate or the increase of a decomposition product is determined kinetically as a measure of the decomposition efficiency for this substrate and the measured value determined is used as regulating value for the control of the clarification plant.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: April 4, 1995
    Assignee: Orpegen Medizinisch-Molekular-Biologische Forschungsgesellschaft mbH
    Inventors: Andreas Volsch, Werner Nader
  • Method for control and monitoring of activated sludge in a biological clarification system
    Patent number: 5173187
    Abstract: The present invention provides a process for the control of a biological rification stage of the aerobic activated sludge type, wherein at least one of the micro-organisms most frequently present in the activated sludge is continuously monitored with regard to the amount thereof in that, in a representative sample from the activated sludge and/or from the inlet of the activated sludge tank, this micro-organism is bound to fluorescence-labelled antibodies directed against the chosen micro-organism or this micro-organism is allowed to react with a fluorogenic substrate by means of a special metabolic ability, the amount of the thus fluorescence-labelled micro-organism is determined by flow cytometry and, at the same time, the total amount of the micro-organism present is determined by scattered light measurement and/or coloration of the DNA and, depending upon the measurement values thus obtained, the amount of at least one particular micro-organism and/or the growth conditions for this micro-organism is regula
    Type: Grant
    Filed: March 23, 1989
    Date of Patent: December 22, 1992
    Assignee: Orpegen Medizinisch-Molekularbiologische Forschungsgesellschaft m.b.H.
    Inventors: Werner Nader, Carl T. Nebe, Gerhard Nebe, Christian Birr