Patents by Inventor Rudolf Piehl

Rudolf Piehl 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).

  • Publication number: 20110042326
    Abstract: The present invention relates to a method of purifying wastewater by contacting the wastewater which is to be purified with a rod-shaped TiO2 photocatalyst which has a BET surface area of 25 to 200 m2/g, a pore volume of 0.10 to 1.00 ml/g, and a median pore diameter of 0.005 to 0.050 ?m, with irradiation by light, and to the use of such a rod-shaped TiO2 photocatalyst which has a BET surface area of 25 to 200 m2/g, a pore volume of 0.10 to 1.00 ml/g, and a median pore diameter of 0.005 to 0.050 ?m, for purifying wastewater with irradiation by light.
    Type: Application
    Filed: April 30, 2009
    Publication date: February 24, 2011
    Applicant: BASF SE
    Inventors: Alexandra Seeber, Götz-Peter Schindler, Katrin Freitag, Reinhard Hess, Rudolf Piehl, Thilo Hahn, Thomas Hill, Michael Hesse, Piotr Makarczyk