A subsidiary of Acacia Research (ACTG) is suing Amazon (AMZN), claiming the Kindle Fire...

|About: Acacia Research Corporation (ACTG)|By:, SA News Editor

A subsidiary of Acacia Research (ACTG) is suing Amazon (AMZN), claiming the Kindle Fire infringes four of its patents. But Nomura's Richard Windsor believes the suit from Acacia, long considered a "patent troll" by its critics, is just proof the Fire is a big deal. Windsor expects the tablet to cause price and margin pressure for Samsung (SSNLF.PK) and Motorola (MMI).