Patents by Inventor Roland Boss

Roland Boss 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).

  • Water purification process
    Patent number: 5180495
    Abstract: A process for purifying water, wherein the water, which is polluted by a mixture of halogenated compounds, preferably halogenated hydrocarbons, is passed through at least two reactors (treatment stages) packed with a porous material populated by one or more microorganisms, one of the reactors being operated under anaerobic conditions and being followed by an aerobically operated reactor; in this way, almost complete elimination of the halogenated compounds, preferably halogenated hydrocarbons, is achieved.
    Type: Grant
    Filed: May 3, 1991
    Date of Patent: January 19, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Markus Thuer, Gerhard Stucki, Roland Boss