Patents by Inventor Wilhelm Roselius

Wilhelm Roselius 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).

  • Method of extracting coffee oil containing aroma constituents from roasted coffee
    Patent number: 4328255
    Abstract: A method of extracting coffee oil containing aromatic constituents in high yield and in stable form by extracting solid, roasted coffee with dry carbon dioxide under super-critical conditions of temperature and pressure.
    Type: Grant
    Filed: June 8, 1977
    Date of Patent: May 4, 1982
    Assignee: Studiengesellschaft Kohle m.b.H.
    Inventors: Wilhelm Roselius, Otto Vitzthum, Peter Hubert
  • Process for the extraction of nicotine from tobacco
    Patent number: 4153063
    Abstract: Process for extracting nicotine is disclosed in which tobacco is exposed to an extracting solvent in either liquid or gaseous state at temperatures below about 100.degree. C. and at high pressures. The aroma generating substances can be removed by conducting the extraction with the tobacco in dry condition. Thereafter the tobacco can be moistened, and on further contacting the nicotine is removed. The aroma generating substances can then be recombined with nicotine free tobacco.
    Type: Grant
    Filed: August 23, 1973
    Date of Patent: May 8, 1979
    Assignee: Studiengesellschaft Kohle mbH
    Inventors: Wilhelm Roselius, Otto Vitzthum, Peter Hubert