Patent holding company NTP Inc. said on Monday it filed a patent infringement lawsuit against Palm Inc., maker of the Treo mobile phone, in a U.S. court, sending Palm shares down more than 7 percent.

The suit alleges that Palm’s products and services infringed NTP’s patents and seeks recovery of monetary damages resulting from Palm’s direct and indirect infringement, the intellectual property firm said in a statement.

Specifically, NTP said it is targeting services and systems primarily used or adapted for use in e-mail systems with radio frequency communications to mobile processors and related services.

A Palm spokeswoman was not immediately available for comment.

Source: Reuters