MUMBAI, India, May 2 -- Intellectual Property India has published a patent application (202547033906 A) filed by Inventio Ag, Hergiswil, Switzerland, on April 7, for 'door drive device with two independently displacable drivers.'
Inventor(s) include Studer Christian; Hosemann Axel; and Lindberg Bjarne.
The application for the patent was published on May 2, under issue no. 18/2025.
According to the abstract released by the Intellectual Property India: "The invention relates to a door drive device for opening and closing corresponding lift door leaves of lift doors of a lift. The door drive device according to the invention has a first driver (42) which acts on a first coupling element (36) arranged on a first lift door leaf to open the fi...