Dental care manufacturer Ranir LLC filed a federal lawsuit seeking judgment that its teeth whitening products don’t infringe competitor CAO Group Inc’s protected peroxide gel compositions.
Ranir approached CAO in 2014 to discuss a polymer for improving teeth whitening technology but later backed out when it realized the method was too different, according to a complaint filed Tuesday in the US District Court for the District of Utah. CAO began pursuing patents for treatments similar to Ranir’s methods and started a “harassment campaign” involving Ranir’s customers, the complaint said.
- CAO emailed Ranir in June 2023 alleging its Rembrandt Whitening Strips, ...
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