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USP 6,104,711 -- Enhanced internet domain name server.
USP 6,282,574 -- Method, server and telecommunications system for name translation on a conditional basis and/or to a telephone number.
VoIP Session management patents:
USP 6,430,275 -- This patent relates to hybrid PSTN - packet based networks and a control object between the networks that performs session management including authorizing callers, pricing and keeping records of call progress.
USP 6,137,869 -- This patent is very similar to the 275 patent.
USP 6,970,930 -- "Method and system of providing differentiated services." It relates to using SIP and other protocols to set up telecommunications at a guaranteed quality of service (QoS) level.
USP 6,335,927 -- System and method for providing requested quality of service in a hybrid network. This patent is similar to the above.
USP 6,292,481 -- Inter-carrier signaling and usage accounting architecture for internet telephony.
USP 6,636,597 -- Method of and system for providing services in a communications network. This patent relates to identifying and ranking resources for use in establishing communications.
NTP Patent Enforcement - A few years later NTP - History
NTP sued RIM for infringing 5 patents on wireless email over RIM’s blackberry device
Patents relate to wireless email delivery through a “push” type of model
The RIM case settled for over $600 million
RIM launched a Re-Examination proceeding at the Patent Office
Re-exam still pending
All claims rejected as not patentable
NTP Patent Enforcement - A few years later NTP - Aftermath
NTP has sued Palm, Verizon Wireless, AT&T, Sprint-Nextel and others
Defendants have succeeded in staying the case for the pendancy of the re-exam proceeding
The value of the NTP portfolio and the relevance of the portfolio going forward now depends largely on the Patent Office’s re-exam proceeding