Patents by Inventor Hans-Dieter Groffman

Hans-Dieter Groffman 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).

  • Process for digital signing of a message
    Patent number: 7774609
    Abstract: A method and apparatus for the digital signing of a message to be signed, the message to be signed is transmitted via a communication network to a mobile radio telephone to be used as a signing unit. A message to be signed is transmitted from a transmitter to a receiver and then from the receiver to the mobile radio telephone via a telephone network. The mobile radio telephone user indicates that the message to be signed should be signed, and the mobile radio telephone generates a signed message. The signed message is then transmitted from the mobile radio telephone to the receiver and from the receiver to an addressee.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: August 10, 2010
    Assignee: First Data Mobile Holdings Limited
    Inventors: Stefan Röver, Hans-Dieter Groffman
  • PROCESS FOR DIGITAL SIGNING OF A MESSAGE
    Publication number: 20090034730
    Abstract: A method and apparatus for the digital signing of a message to be signed, the message to be signed is transmitted via a communication network to a mobile radio telephone to be used as a signing unit. A message to be signed is transmitted from a transmitter to a receiver and then from the receiver to the mobile radio telephone via a telephone network. The mobile radio telephone user indicates that the message to be signed should be signed, and the mobile radio telephone generates a signed message. The signed message is then transmitted from the mobile radio telephone to the receiver and from the receiver to an addressee.
    Type: Application
    Filed: April 14, 2008
    Publication date: February 5, 2009
    Applicant: Encorus Holdings Limited
    Inventors: Stefan Rover, Hans-Dieter Groffman
  • Method for digital signing of a message
    Patent number: 7386727
    Abstract: A method and apparatus for the digital signing of a message to be signed, the message to be signed is transmitted via a communication network to a mobile radio telephone to be used as a signing unit. A message to be signed is transmitted from a transmitter to a receiver and then from the receiver to the mobile radio telephone via a telephone network. The mobile radio telephone user indicates that the message to be signed should be signed, and the mobile radio telephone generates a signed message. The signed message is then transmitted from the mobile radio telephone to the receiver and from the receiver to an addressee.
    Type: Grant
    Filed: October 24, 1998
    Date of Patent: June 10, 2008
    Assignee: Encorus Holdings Limited
    Inventors: Stefan Röver, Hans-Dieter Groffman