A high stakes patent trial between Oracle and Google will likely be postponed beyond its currently scheduled October 31 start date, a U.S. judge said in a court filing.

Oracle sued Google last year, alleging the Web search leader's Android mobile operating technology infringes Oracle's Java patents.

In addition to those patent claims, Oracle also leveled copyright infringement claims against Google. Oracle acquired the Java programing language through its purchase of Sun Microsystems in 2010.

In a notice on Wednesday, U.S. District Judge William Alsup said the trial will likely be postponed, due to an unrelated criminal trial scheduled to take place at the same time. Alsup stopped short of formally vacating the October 31 trial date, but called it unlikely.

Google has argued that the entire case should be put on hold pending reexaminations of Oracle's patents by the U.S. Patent and Trademark Office. Oracle says the case should move forward.

The case in U.S. District Court, Northern District of California, is Oracle America, Inc v. Google Inc, No. 10-3561.

(Reporting by Dan Levine; Editing by Tim Dobbyn)