Qualcomm had recently reported of filing three new patent infringement complaints against Apple, accusing Apple of acquiring 16 more of its patents that Apple had been using in its iPhones.
The new complaints state of the latest development in a long-standing dispute and further follows Apple’s countersuit on Wednesday against Qualcomm, which had alleged that Qualcomm’s Snapdragon mobile phone chips had infringed on Apple patents.
However, Apple declined to comment on the new cases, referring to its earlier claims in its latest filing that the company has developed its own technology and patents to power its iPhones.
Previously, Qualcomm in July has accused Apple of infringing several patents related to helping mobile phones for getting a better battery life.
Now, that case also accompanied a complaint with the U.S. International Trade Commission seeking to ban the import of Apple iPhones that have use competing Intel Corp chips because of the alleged patent violations.
The three cases filed on Thursday were all filed in US District Court for the Southern District of California in San Diego. One of these cases is also a companion civil lawsuit to a new complaint and is also filed on 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 now a 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 had allegedly withheld from Apple.
So, in a related suit, Qualcomm sued the contract manufacturers that make Apple’s phones, but Apple also joined in to defend them.
Qualcomm in November sued Apple over an alleged breach of a software agreement between the two companies. Apple then had emailed Qualcomm to request “highly confidential” information about how its chips work on an unidentified wireless carrier’s network. Qualcomm alleged, but Apple had copied an Intel engineer in the email for information.
Separately, Qualcomm is facing a separate lawsuit from the US Federal Trade Commission over many of the same pricing practices Apple names in its complaints.