Patents by Inventor István Nándor Antal

István Nándor Antal 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).

  • pH-dependent gradual release pharmaceutical composition
    Patent number: 9839607
    Abstract: The invention concerns a pH-dependent gradual sustained release composition for increasing the pH in the upper part of the small intestines. Particles of the composition are provided with a multilayer polymer coating of specific structure which ensures the gradual release of the active agent in the range of pH 4.5 to 5.5. A process for preparing said composition is also claimed.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: December 12, 2017
    Inventors: Péter Hajnal, Péter Szegó, István Nándor Antal, Judit Dredán, Imre Klebovich, Miléna Bea Lengyel
  • PH-DEPENDENT GRADUAL RELEASE PHARMACEUTICAL COMPOSITION
    Publication number: 20130195974
    Abstract: The invention concerns a pH-dependent gradual sustained release composition for increasing the pH in the upper part of the small intestines. Particles of the composition are provided with a multilayer polymer coating of specific structure which ensures the gradual release of the active agent in the range of pH 4.5 to 5.5. A process for preparing said composition is also claimed.
    Type: Application
    Filed: May 12, 2011
    Publication date: August 1, 2013
    Inventors: Péter Hajnal, Péter Szegõ, István Nándor Antal, Judit Dredán, Imre Klebovich, Miléna Bea Lengyel