Patents by Inventor Jost W. Hartwig

Jost W. Hartwig 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).

  • Patent number: 4144014
    Abstract: A process for the thermal after-burning of waste gases containing combustible substances capable of forming an explosive mixture with air in a specific concentration range comprises feeding the waste gas undiluted to a flame with a concentration of combustible substances which varies between the lower and the upper explosion limits, feeding the waste gas to the combustion zone at an entry speed higher than 10 m/sec, and discontinuing the supply of waste gas when a limit temperature of 80.degree. C. is exceeded in the waste gas shortly before its entry into the combustion zone.
    Type: Grant
    Filed: January 4, 1977
    Date of Patent: March 13, 1979
    Assignee: Ciba-Geigy Corporation
    Inventor: Jost W. Hartwig