If Research In Motion survives its patent dispute with NTP in the United States it will most likely have to repeat the saga with Visto, which claims to have an equally strong case against the Blackberry maker.
An anti-patent organisation criticised Microsoft on Wednesday for filing a patent with a claimed similarity to IPv6, the next-generation Internet protocol.
Wireless e-mail vendor Visto has prevailed in a long-running patent infringement suit against rival Seven Networks, prompting a new legal challenge against Research In Motion and potentially strengthening Visto's position in a pending spat with Microsoft.
As part of a re-examination, the U.S. Patent Office has issued a preliminary rejection for a patent previously granted to Microsoft for a Windows file format.
A workaround by Research In Motion, designed to avoid infringing patents held by intellectual property company NTP, is simply a negotiating tactic to help the BlackBerry maker settle out of court, according to analyst group Gartner.
The patent system is supposed to encourage technological innovation. Instead, it rewards those who have the knowledge and resources to work it to their advantage.
An Internet standards body has decided to drop a controversial proposal that would have allowed patent holders to charge royalties on technology used in Web standards.
A key patent holder's demand for royalties has triggered concerns that promising RFID technology could become embroiled in an intellectual-property battle.
Open Source Risk Management plans on Monday in the US to begin selling Linux users protection against copyright infringement claims such as those levied by the SCO Group.
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