Patents by Inventor Siegfried Praegner

Siegfried Praegner 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).

  • Data carrier-based electronic goods/services procurement/purchasing system
    Publication number: 20020010650
    Abstract: A data carrier-based electronic goods/services procurement/purchasing system in which transactions with multiple goods and services providers (container partners) are handled by means of data carrier cards (2) via a system computer (12, 24), wherein in the system at least one memory location (6) for user-individual data is provided on the data carrier card (2); a memory location (8) for user-individual container data is provided in the system, i.e.
    Type: Application
    Filed: July 10, 2001
    Publication date: January 24, 2002
    Inventors: S.K.H. Eberhard Herzog von Wuerttemberg, Christian Albertshofer, Siegfried Praegner