Google, Apple, Yahoo!, Dell, Intel, Facebook and Hewlett-Packard have all come out in support of Microsoft's efforts to upend a patent infringement verdict that ordered the software giant to pay $290m in damages with an injunction that prevented it from selling 2003 and 2007 versions of Word that came loaded with i4i's patented XML tech. Microsoft was also required to remove custom XML editor from its Office 2010 suite, prior to launch.
Microsoft is hoping to convince the US Supreme Court to rethink how the country's judicial system decides the validity of patents.
In May this year Microsoft failed to have a patent claim brought against i4i examined by US Patent and Trademark Office (USPTO).
At the time, a gleeful i4i said that "i4i's patent [number 5,787,449] is clearly and unequivocally valid".
But Microsoft continues to dispute that claim, and it now has the backing of some big name tech firms, a couple of US trade groups, retail giant Walmart and even an endorsement from the Electronic Frontier Foundation.