Patents by Inventor Johannes Lercher

Johannes Lercher 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).

  • Process for preparing isocyanic acid from cyanuric acid
    Patent number: 5466429
    Abstract: Process for preparing isocyanic acid by bringing cyanuric acid into contact with an aluminum catalyst at temperatures of from 300.degree. to 600.degree. C. and isolating the isocyanic acid formed or directly using it for further reaction.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: November 14, 1995
    Assignee: Chemie Linz GmbH
    Inventors: Johannes Lercher, Zhan Zhaoqui