Patents by Inventor Jerzy Cieslak

Jerzy Cieslak 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).

  • Esters of amidinepenicillins
    Patent number: 4341779
    Abstract: Methylacetic esters of amidinepenicillins have a powerful antibacterial effect in relation to a number of pathogenic gram-negative bacterias and to pathogenic strains of Pseudomonas. Their superiority resides in their considerably higher absorpticity in relation to that of the free acids. This invention also includes a method for the preparation of these esters by acting with chloroacetone on salts of the corresponding amidinepenicillanic acids.
    Type: Grant
    Filed: August 17, 1979
    Date of Patent: July 27, 1982
    Assignee: Tarchominskie Zaklady Farmaceutyczne
    Inventors: Jerzy Cieslak, Irena Busko-Oszczapowicz, Marek Stepniak