NTP Holding owns about 50 patents in the field of wireless communications. In 2000, NTP accused Blackberry, the manufacturer of Blackberry smartphones, of infringing a patent for wirelessly sending emails to the company, which in 2005 paid a holding of $ 612 million. In 2007, NTP filed lawsuits against AT & T, Sprint Nextel, T-Mobile and Verizon Wireless. Lawsuits against these companies are still pending. Licensing agreements have already been concluded with RIM, Good Technology, Nokia and Visto.Source: https://habr.com/ru/post/98826/
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