Patents by Inventor Sofie Drijver

Sofie Drijver 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).

  • Patent number: 7155209
    Abstract: Messaging system for mobile terminals where the system utilizes a message server which exchanges messages, originating from the terminals, through use of an identification code. The message server grants each terminal access to the messages originating from terminals which use identification codes that belong to the same group of identification codes. The identification codes within each group can be identical or non-identical, and, as for the latter, the message server arranges the identification codes into groups. The message server “stores and forwards” messages, and provides real-time message exchange; and keeps track of which message originates from which terminal, which message has been retrieved by which terminal and, on a group by group basis, which terminals are simultaneously connected to the message server.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: December 26, 2006
    Assignee: Koninklijke KPN. N.V.
    Inventors: Pablo Zom, Jacobine Johanette Mannak, Sofie Drijver, Pauline Martine Van Hoorik, Evelien Maria Perik
  • Publication number: 20040043778
    Abstract: Messaging system for mobile terminals (1), comprising a message server (5) which comprises means for exchanging messages originating from the terminals making use of an identification code. The message server comprises access means (6, 9) for granting each terminal access to the message originating form terminals which use identification codes belonging to the same group of identification codes. The identification codes within each group can be identical (ABC, DEF) or non-identical (a, b, c, . . . ); in which latter case the message server comprises grouping means (9, 10) for arranging the identification codes into groups.
    Type: Application
    Filed: July 8, 2003
    Publication date: March 4, 2004
    Inventors: Pablo Zom, Jacobine Johanette, Sofie Drijver, Pauline Martine Vanhoorik, Evelien Maria Perik