Flash memory maker SanDisk Corp. said Oct. 25 that it filed three lawsuits against 25 flash memory product and memory player makers, alleging they infringed on a number of its patents.

SanDisk filed two of the actions in Wisconsin district court and one with the International Trade Commission. The company is seeking unspecified damages, a permanent injunction in federal court actions and a permanent exclusion order from the commission that would ban importation of infringing products into the U.S.