Translation obligations into English apply strictly to patent applicants in India—but what happens when the Patent Office cites non-English prior art?

In a recent patent case Advanced Electric Machines Group v. Controller of Patents (Calcutta High Court, April 2025), a patent rejection for an EV sub-assembly was set aside. One of the procedural issues noted: the Patent Office cited a Japanese prior art document (D3) at the hearing stage—without providing an English translation. While the judgment addressed multiple […]