Motorola Mobility has filed a 33-page petition for review with the United States International Trade Commission (USITC, or just ITC) concerning a mid-December preliminary ruling by an Administrative Law Judge on the sole remaining patent in Motorola’s complaint against Apple, reports “FOSS Patents” (http://tinyurl.com/acoshyn).

In December, Judge Thomas B. Pender, an administrative law judge at the U.S. International Trade Commission has ruled that Apple didn’t violate a Motorola Mobility patent relating to a sensor controlled user interface for a portable communication device. This is part of an ongoing battle between the two companies.

Apple has alleged that Motorola infringes 24 of its patents (21 of them with Android-based phones, the remaining three with set-top boxes and DVRs), while Motorola previously asserted 18 patents against a variety of Apple products (mostly but not exclusively iPhone, iPad and iPod). Litigation between the two companies has taken place in several different federal courts.