NTP, an intellectual property holding company, assembled a portfolio of 10 patents which it asserted against Research-in-Motion, the maker of the highly successful Blackberry wireless e-mail and paging systems. In March 2006 after 5 years of a twisted and protracted litigation dance, RIM agreed to a settlement in which it paid NTP $612 million. RIM Chairman Jim Balsillie said that while it's "not a good feeling to write this kind of check," it was necessary to ensure the health of the company and the future of the BlackBerry. This case was highly followed in the media and the blogs

This IPVision Multipatent Landscape Map™ shows the 10 NTP patents and the patents that they cite or that cite them as prior art. Notice the red top RIM patents in the upper right of the map- they cite several of the NTP patents..

The owners of the patents on this map are: