Cornell's suit, filed in the US District Court for the Northern District of New York, alleges that HP has been infringing a Cornell patent since 1995. Repeated efforts to address the infringement have been rebuffed by HP, according to Cornell. The university estimates that its request for damages could exceed $100m (£69m).
The patent in question - US patent number 4,807,115 "Instruction issuing mechanism for processors with multiple functional units" - was granted in 1989 to Cornell Research Foundation, covering a technique invented by HC Torng, a professor emeritus with Cornell's School of Electrical and Computer Engineering.
HP has been infringing the patent since 1995, Cornell said in a statement. No one from HP was available for comment.