Taiwan's Elan Microelectronics -- involved in a long-running lawsuit with Apple over multi-touch technology -- has asked the US International Trade Commission to block the import and sale of a variety of Apple products, says Bloomberg. Specifically Elan says it wants to halt products that infringe on its "352" patent, which describes a means of detecting the presence of two or more fingers. "Our goal is to protect our technology and to stop sales of those products in the US," says Elan spokesman Dennis Liu.