Ericsson’s patent dispute with Apple continues to grind forward, with the Swedish company asking a Taiwanese company thought to be an Apple supplier to produce documents that could be relevant to its court case.
Simplo Technology has been asked to produce the names of any device manufacturers that used its battery pack after Jan. 1, 2012, and any information related to its specifications. The request sheds no light on how the product might figure into the dispute, which involves wireless standards.
Ericsson filed complaints with the International Trade Commission and the U.S. District Court in Texas earlier this year, alleging that Apple’s iPhones and iPads violate patents used in setting the 2G and 4G LTE wireless communications standards. Ericsson has claimed Apple refused the licensing terms it offered for its patented technology.
Apple previously issued a statement saying it respects intellectual property law.
“We’ve always been willing to pay a fair price to secure the rights to standards essential patents covering technology in our products,” Apple said. “Unfortunately, we have not been able to agree with Ericsson on a fair rate for their patents so, as a last resort, we are asking the courts for help.”
This article originally appeared on Recode.net.