Patents by Inventor JOSEPH J. ZAKZESKI

JOSEPH J. ZAKZESKI 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).

  • Catalyst for the epoxidation of alkenes
    Patent number: 9714227
    Abstract: The present invention relates to a catalyst for the epoxidation of alkenes, comprising silver, rhenium, cesium, lithium, tungsten and sulfur on a support. The present invention further relates to a process for producing the catalyst and the use of the catalyst for the oxidation of alkylenes to alkylene oxides. In addition, the present invention relates to a process for preparing ethylene oxide from ethylene, which comprises the oxidation of ethylene with oxygen in the presence of said catalyst.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: July 25, 2017
    Inventors: Joseph J. Zakzeski, Marco Bosch, Cornelia Dobner, Christian Bartosch, Jürgen Zühlke
  • CATALYST FOR THE EPOXIDATION OF ALKENES
    Publication number: 20160297781
    Abstract: The present invention relates to a catalyst for the epoxidation of alkenes, comprising silver, rhenium, cesium, lithium, tungsten and sulfur on a support. The present invention further relates to a process for producing the catalyst and the use of the catalyst for the oxidation of alkylenes to alkylene oxides. In addition, the present invention relates to a process for preparing ethylene oxide from ethylene, which comprises the oxidation of ethylene with oxygen in the presence of said catalyst.
    Type: Application
    Filed: December 1, 2014
    Publication date: October 13, 2016
    Inventor: JOSEPH J. ZAKZESKI