Rambus announced last Friday that it has filed a new patent infringement case against Micron Technologies following the lifting of a stay by the Delaware court.

In the case filed in the 13th of January, Rambus asserts infringement of its patents by DDR2, GDDR2 and GDDR3 and other memory devices that are currently shipping in the marketplace.

"These are complex cases that merit coordinated decision making," said John Danforth, senior vice president and general counsel at Rambus. "With today's order and our new filing, we are taking steps consistent with the nature of these cases and with our efforts over the past four years to see them resolved in California. While we prefer to resolve issues outside of the courtroom, we believe we have a strong patent position, including patents that issued in the past four years that must be defended appropriately."

Today's filing asserts Micron memory products infringe additional features covered by Rambus patents that are incorporated into Micron's DDR2, GDDRx and other advanced memory products.