MUMBAI, India, Jan. 9 -- Intellectual Property India has published a patent application (202511098594 A) filed by Jamna Auto Industries Limited, Yamuna Nagar, Haryana, on Oct. 13, 2025, for 'a stepped collar assembly to prevent bolt failures in heavy commercial vehicle suspension systems.'
Inventor(s) include Sunil Laroiya; Anuj Sharma; Narendra Jat; and Dilip Girdhar Patil.
The application for the patent was published on Jan. 9, under issue no. 02/2026.
According to the abstract released by the Intellectual Property India: "The present invention discloses a stepped collar fastening mechanism for parallelogram-type and trailing arm suspension assemblies in heavy commercial vehicles, designed to prevent torque loss and enhance durability....