Patents by Inventor Johannes Hoffner

Johannes Hoffner 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 preparation of 2H-chromenes
    Patent number: 7893262
    Abstract: The invention concerns a novel process for the preparation of 2H-chromenes of formula I and formula 5 and valuable intermediates of formulae 3 and 4 of this process.
    Type: Grant
    Filed: August 3, 2004
    Date of Patent: February 22, 2011
    Assignee: Arpida AG
    Inventors: Jurgen Jaeger, Kaspar Burri, Sorana Greiveldinger-Poenaru, Johannes Hoffner
  • Novel Process For The Preparation Of 2H-Chromenes
    Publication number: 20080015354
    Abstract: The invention concerns a novel process for the preparation of 2H-chromenes of formula I and formula 5 and valuable intermediates of formulae 3 and 4 of this process.
    Type: Application
    Filed: August 3, 2004
    Publication date: January 17, 2008
    Applicant: ARPIDA AG
    Inventors: Jurgen Jaeger, Kaspar Burri, Soran Greiveldinger-Poenaru, Johannes Hoffner
  • Novel hydrazones
    Publication number: 20040110963
    Abstract: The invention relates to novel hydrazone derivatives and their use as active ingredients in the preparation of pharmaceutical compositions. The invention also concerns related aspects including processes for the preparation of the compounds, pharmaceutical compositions containing one or more of those compounds and especially their use as anti-infectives.
    Type: Application
    Filed: November 21, 2003
    Publication date: June 10, 2004
    Inventors: Kaspar Burri, Johannes Hoffner, Khalid Islam, Seema Mukhija
  • Process for the preparation of malononitrile
    Patent number: 6020515
    Abstract: A novel process for the preparation of malononitrile which involves subjecting a (2-cyano-N-alkoxy)acetimidoyl halide to a high-temperature treatment.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: February 1, 2000
    Assignee: Lonza, Ltd.
    Inventors: Peter Chen, Johannes Hoffner, Andre Mueller, Rudolf Fuchs
  • Process for the preparation of malononitrile
    Patent number: 5959136
    Abstract: A novel process for the preparation of malononitrile, which involves subjecting an isonitrile, optionally in the presence of a nitrile, to a high-temperature treatment.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: September 28, 1999
    Assignee: Lonza, Ltd.
    Inventors: Peter Chen, Johannes Hoffner, Andre Mueller, Rudolf Fuchs