In the case, MOSAID has asserted that seven patents are infringed by memory products manufactured or sold by Infineon.

According to a press release by the company, each of the seven patents asserted was at issue in one or more of the summary judgment motions filed by the parties and decided by the Court.

The Court ruled that Infineon's accused products do not infringe any of the asserted claims of MOSAID patent Nos. 5,822,253, 5,751,643, 6,278,640, 5,828,620, 6,055,201 and 6,580,654. The Court did not make any ruling as to whether or not Infineon's products infringe MOSAID patent No. 6,603,703.

The Court ruled that as a matter of law MOSAID will not be permitted to rely upon the doctrine of equivalents to overcome any limitation of any of the asserted claims of the patents in suit. The Court also ruled that MOSAID can only seek damages for the period prior to filing the lawsuit for products specifically identified in its letters notifying Infineon of infringement.

The Court ruled in favor of MOSAID in finding that several references put forward by Infineon as prior art did not invalidate any of the patents in suit. The Court also rejected Infineon's contention that any of the patents were invalidated due to the on-sale bar or inequitable conducts.

The Court rejected Infineon's argument that any of the patents in suit were unenforceable due to prosecution laches, except that the Court made no ruling as to whether patent Nos. 6,580,654 or 6,603,703 were unenforceable due to prosecution laches because the Court believes there are disputes of fact concerning these patents.

"We expect that this case will now be transferred back to California," said Jim Skippen, senior vice president, patent licensing and general counsel of MOSAID.

"It is our intention to continue to vigorously pursue this case to a successful outcome for MOSAID," he concluded.