E.U. Rules Against Patent Play by Google's Motorola Unit BRUSSELS - The European Commission on Monday made a preliminary antitrust finding against Google's subsidiary Motorola Mobility, saying that it might have abused its dominance in wireless communications patents in seeking an injunction against Apple in Germany. The preliminary finding, which could lead to formal antitrust charges, comes as part of the commission's battle to ensure that powerful companies with large patent portfolios do not block other companies from using technologies that are vital for smartphones and tablet computers. "I think that companies should spend their time innovating and competing on the merits of the products they offer - not misusing their intellectual property rights to hold up competitors to the detriment of innovation and consumer choice," Joaquín Almunia, the European Union's competition commissioner, said on Monday in a statement before a news briefing on the topic. The case focuses on how Motorola Mobility sought to legally block Apple in Germany from using a so-called "standard essential" patent that is part of the GSM mobile and wireless standard on which Europe relies. In a statement Monday, The European Commission, the executive arm of the European Union, said Motorola Mobility's seeking of the injunction against Apple could amount to "an abuse of a dominant position prohibited by E.U. antitrust rules." On Monday, Google referred all questions to Katie Dove, a spokeswoman for Motorola Mobility, who said the company had followed procedures established in a ruling by the German Supreme Court. Google's acquisition of Motorola Mobility, worth about $12.5 billion, cleared its biggest hurdles by winning regulatory approval in the United States and Europe in February 2012. But in a warning at the same time, Mr. Almunia said his decision to approve that acquisition would not exonerate any wrongdoing concerning patents "by Motorola in the past or all future action by Google." In a statement at the time, Motorola Mobility said it was "confident that a thorough investigation" would show that it had honored its "obligations and complied with antitrust laws." Correction: May 6, 2013 An earlier version of this article misstated the timing of the American and European approval of Google's acquisition of Motorola Mobility. It was in February 2012, not February of this year.