Google won an early round in a patent lawsuit regarding the technology that drives Google Earth, the search giant\u2019s lawyer said on Monday. The suit, filed by Skyline Software Systems in the U.S. District Court of Massachusetts, charges Google Earth with patent infringement. The case was originally filed against Keyhole, the company that developed the software that drives Google Earth. Google acquired Keyhole in October 2004. After the acquisition, Skyline added Google as a defendant. A year later, Skyline asked the judge for an injunction that would prevent Google from offering the Google Earth service. That lag time allowed Google\u2019s lawyer to argue that Skyline couldn\u2019t credibly say Google Earth was causing it irreparable harm if it waited so long to file the injunction. The judge ruled against the injunction, but the lawsuit is still pending. Google Earth is a free application that show maps and satellite images of practically any location in the world. On Monday, Google introduced an upgrade to the program that features a new user interface and larger index of images.Skyline sells software that offers a\u00a03-D visualization of the Earth compiled through satellite and aerial photography images. It targets customers in the military, communications, utility and civil engineering industries.-Nancy Gohring, IDG News Service (Dublin Bureau)Related Link:\n\nGoogle Earth Adds Images, Other FeaturesCheck out our CIO News Alerts and Tech Informer pages for more updated news coverage.