According to the suit, Royal Enfield has infringed Flash Electronics' patent on "regulator rectifier device and method for regulating an output voltage of the same" issued by the United States Patent & Trademark Office on February 20, 2018.
Flash Electronics said, in a statement on Monday, that it would file similar suits in several European countries as Germany, France, Italy, Britain, the Netherlands, Sweden, Spain, Austria, Switzerland and Turkey had granted patents for the device.
The regulator-rectifier is a vital component that smoothly and efficiently converts the AC (alternating current) voltage produced in motorcycle engines into DC (direct current) voltage to charge the batteries, power the headlights, light up the instrument panel, hence driving the motorcycle's electrical systems.
Sanjeev Vasdev, Managing Director, Flash Electronics India Pvt Ltd, said: "It's unfortunate to have to deal with such an unexpected and unprecedented act on the part of Royal Enfield, one of the most prestigious names in the automotive sector. This incident is highly objectionable and has dented the credibility of the brand, at least with us as a partner."
Vasdev said that the company was approached by three officials of Royal Enfield on October 12, 2018 in New Delhi to settle the issue "amicably" and "not to file any suit on the matter". Royal Enfield did not, however, address the issue.
He added that the component maker will take all necessary action required across the world to ensure that Royal Enfield stops infringing the patent and pays compensation for the violation which would run into millions of dollars.
Eicher Motors confirmed that it has received the notice and said its team in the US is reviewing the complaint.