Patents by Inventor Guido ISSLING

Guido ISSLING 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 the production of phthalimides
    Patent number: 9701632
    Abstract: The invention relates to a process to produce phthalimides by heating diammonium phthalate in the presence of aromatic solvents and to a process to produce phthalimides by heating diammonium phthalate in the presence of aromatic solvents for their recycled use during the ion exchanger production process. The diammonium phthalate is prepared by making use of the phthalic add salts solution resulted from the on exchanger production process.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: July 11, 2017
    Assignee: LANXESS DEUTSCHLAND GMBH
    Inventors: Wolfgang Zarges, Georg Martin, Uwe Boeger, Michael Pies, Guido Issling, Markus Koschorreck
  • PROCESS FOR THE PRODUCTION OF PHTHALIMIDES
    Publication number: 20160304454
    Abstract: The invention relates to a process to produce phthalimides by heating diammonium phthalate in the presence of aromatic solvents and to a process to produce phthalimides by heating diammonium phthalate in the presence of aromatic solvents for their recycled use during the on exchanger production process. The diammonium phthalate is prepared by making use of the phthalic add salts solution resulted from the on exchanger production process.
    Type: Application
    Filed: December 19, 2014
    Publication date: October 20, 2016
    Inventors: Wolfgang ZARGES, Georg MARTIN, Uwe BOEGER, Michael PIES, Guido ISSLING, Markus KOSCHORRECK