Conqueror Innovations Private Limited & Anr. vs. Xiaomi Technology India Private Limited
Background
The appellants owned a 2010 patent for a "Communication Device Finder System": anti-theft software meant to let an owner secretly track and recover a stolen phone even after a thief changes its SIM card. They sued Xiaomi, alleging its "Find Device" feature copied this invention, and sought an interim injunction against sale of Xiaomi phones in India. A single judge had earlier refused the injunction, finding no strong prima facie case of infringement.
Decision Breakdown
The Division Bench upheld the single judge's refusal. It found Xiaomi's "Find Device" (which can lock, ring, or wipe a lost phone) lacks two essential features of the patent: a permanently stored "message center number" enabling covert SMS communication with the phone, and a silent "auto-answer mode" letting the owner secretly listen to conversations near the stolen phone to help locate and recover it. The appellants had also sat on their rights for roughly nine years after Xiaomi began selling phones in India, weakening the case for urgent interim relief, particularly since the patent itself was due to expire within about six weeks of the ruling.
Lesson Learnt
To obtain an emergency injunction for patent infringement, a patent owner must show the accused product actually contains every essential technical feature of the patented invention, general similarity of purpose (both being "anti-theft" tools) is not enough, and long delay in suing can itself defeat urgent interim relief.