MUMBAI, India, Oct. 12 -- Intellectual Property India has published a patent application (202541132383 A) filed by G R Malathi on December 26, 2025, for Multi-Layer Reinforced Coupling / Collar For Composite Ms–pvc–ms Pipe.
Inventor includes G R Malathi.
The application for the patent was published on October 09, 2026, under issue no. 41/2026.
Abstract: The present invention relates to a composite coupling or collar comprising an outer mild-steel layer, an inner mild-steel layer, and a central PVC insulating layer. The coupling is specifically designed to join dual mild-steel reinforced composite pipes with a central PVC core, ensuring structural continuity, thermal insulation, corrosion resistance, and vibration damping at pipe joints. ...