Qualcomm Inc said on Thursday it filed three new patent infringement complaints against Apple Inc., saying there were 16 more of its patents that Apple was using in its iPhones.
The new complaints represent the latest development in a long-standing dispute and follows Apple’s countersuit on Wednesday against Qualcomm, which alleged that Qualcomm’s Snapdragon mobile phone chips infringed on Apple patents.
That case accompanied a complaint with the U.S. International Trade Commission seeking to ban the import of Apple iPhones that use competing Intel Corp. chips because of the alleged patent violations.
The three cases filed Thursday were all filed in U.S. District Court for the Southern District of California in San Diego. One of the cases is a companion civil lawsuit to a new complaint also filed Thursday with the ITC that seeks the same remedy of banning iPhones with Intel chips. The other two cases are civil patent infringement lawsuits.
The dispute between Apple and Qualcomm over patents is part of a wide-ranging legal war between the two companies.
In January, Apple sued Qualcomm for nearly $1 billion in patent royalty rebates that Qualcomm allegedly withheld from Apple.
In a related suit, Qualcomm sued the contract manufacturers that make Apple’s phones, but Apple joined in to defend them.
Separately, Qualcomm is facing a lawsuit from the U.S. Federal Trade Commission over many of the same pricing practices Apple names in its complaints.