Patents by Inventor Stefan Grunzig

Stefan Grunzig 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).

  • Method for securing a transaction on a computer network
    Publication number: 20040039651
    Abstract: A method is described for protecting a transaction over a computer network by which a one-time transaction password is transmitted to a service user and transmitted by the service user to a service provider over the computer network to confirm the transaction. The transaction password is transmitted over a mobile network to the service user's mobile communication terminal.
    Type: Application
    Filed: July 31, 2003
    Publication date: February 26, 2004
    Inventors: Stefan Grunzig, Tschangiz Scheybani
  • Method for securing digital goods on sale thereof over a computer network
    Publication number: 20040030652
    Abstract: A method for protecting digital goods upon sale over a computer network is described whereby the goods are encrypted using a symmetric encryption method with a key, the encrypted goods are transmitted over the computer network to a customer's computer and decrypted there by the key. The key is transmitted separately to the customer's mobile communication terminal over a mobile phone network.
    Type: Application
    Filed: August 13, 2003
    Publication date: February 12, 2004
    Inventors: Stefan Grunzig, Tschangiz Schevbani