Oracle Corp is seeking damages "in the billions of dollars" from Google Inc in a patent lawsuit over the smartphone market, according to a court filing.
Oracle sued Google last year, claiming the Web search company's Android mobile operating technology infringes Oracle's Java patents. Oracle bought the Java programming language through its acquisition of Sun Microsystems in January 2010.
Some see the lawsuit as a sign of a growing business rivalry between the two companies.
The case is also part of a wider web of litigation among phone makers and software firms over who owns the patents used in smartphones and tablets, as rivals aggressively rush into a market in which Apple jumpstarted with iPhone and iPad.
Barring any settlements, a trial between Oracle and Google is expected to begin by November.