Patents by Inventor Kalle J. Kärkäs

Kalle J. Kärkäs 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).

  • Wireless access device
    Patent number: 7873989
    Abstract: An access device includes means for receiving, via a wireless communication link, a key and validity information. The access device also includes wireless communication means for establishing a connection with another party, and for providing the key and validity information to that party. If the key and validity information are determined by the other party to be valid access is provided.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: January 18, 2011
    Assignee: Nokia Corporation
    Inventors: Kalle J. Kärkäs, Matti Kantola, Jaakko Pääkkönen