Patents by Inventor Janka Králová

Janka Králová 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).

  • Intermediates for the preparation of remifentanil hydrochloride
    Patent number: 10844014
    Abstract: A new intermediate for synthesizing 1-substituted-4-[phenyl(propanoyl)amino]piperidine-4-carbonitrile derivatives is laid open. Specifically set out is a method for use of this intermediate in the preparation of remifentanil. The enclosed shorter process offers a greater yield of products with higher purity as compared to methods reported in the prior art.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: November 24, 2020
    Assignee: HAMELN PHARMA GMBH
    Inventors: Pavol Valachovic, Janka Králová, L'ubo{hacek over (s)} Slí{hacek over (z)}ik, Norbert Varga
  • INTERMEDIATES FOR THE PREPARATION OF REMIFENTANIL HYDROCHLORIDE
    Publication number: 20200131127
    Abstract: A new intermediate for synthesizing 1-substituted-4-[phenyl(propanoyl)amino]piperidine-4-carbonitrile derivatives is laid open. Specifically set out is a method for use of this intermediate in the preparation of remifentanil. The enclosed shorter process offers a greater yield of products with higher purity as compared to methods reported in the prior art.
    Type: Application
    Filed: October 25, 2019
    Publication date: April 30, 2020
    Applicant: Hameln Pharma Plus GmbH
    Inventors: Pavol Valachovic, Janka Králová, Lubos Slízik, Norbert Varga
  • Crystalline forms of zinc trisodium pentetic acid
    Patent number: 9447120
    Abstract: The invention relates to the production of zinc trisodium pentetic acid (Zn-DTPA) and to new crystalline forms of said salt.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: September 20, 2016
    Assignee: Hameln Pharma Plus GmbH
    Inventors: Christian Schickaneder, Vendel Smahovský, Pavol Valachovic, Mathias Dewald, Pavel Hradil, Janka Králová, Radek Melnický, Petr Slézar, Ivan Kakalik