Patents by Inventor Josef Macko

Josef Macko 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 producing chlorobenzenes from benzene sulphonyl chlorides
    Patent number: 3952065
    Abstract: A method of producing chlorobenzenes from benzene sulphonyl chlorides by a thermal chlorinating decomposition of aromatic sulphonyl chlorides of the general formula ##SPC1##WhereinX = hydrogen, halogen, alkyl group with 1-4 carbon atoms, or alkoxy group with 1-4 carbon atoms, andn = an integer of from 1 to 5,In the presence of a catalyst including a combination of active carbon and compounds selected from the group consisting of phosphorus chlorides, phosphorus bromides, and organic azo compounds capable of yielding free radicals when degrading.
    Type: Grant
    Filed: June 20, 1974
    Date of Patent: April 20, 1976
    Assignee: Vyskumny ustav agrochemickej Technologie
    Inventors: Bohumir Mrva, Josef Macko, Milan Kupcik, Stefan Truchlik