BlackBerry has now filed with the U.S. District Court for the Northern District of California seeking to block U.S. sales and imports of the accessory, calling it "an obvious knockoff". The filing was made late on Wednesday. Typo has already sold out its initial inventory thanks to strong demand on the back of some positive reviews of the product. Typo costs $99 and works with both the Apple iPhone 5s and Apple iPhone 5.
BlackBerry is claiming that Typo infringes on U.S. Design Patent 685,775 for the design elements of a "handheld electronic device" and U.S. Patent 7,629,964 which covers "an electronic device with keyboard optimized for use with the thumbs." In its filing, BlackBerry mentions interviews where Seacrest said the idea for Typo came from his desire for a BlackBerry style typing experience combined with everything else that the iPhone has to offer. The Canadian manufacturer also threw in some reviews where the product's resemblance to a BlackBerry QWERTY was mentioned.
Typo's responded by saying that BlackBerry's case has no merit. It was the same exact thing that Typo said in response to BlackBerry's original suit against the company, filed within days of the accessories unveiling.
source: CIO via Crackberry