Intellectual Property India Publishes Patent Application for A Composite Collar / Coupling For Joining Pvc–mild Steel–pvc Composite Pipes With Enhanced Strength, Leak Tightness, And Corrosion Resistance

MUMBAI, India, Oct. 12 -- Intellectual Property India has published a patent application (202541132386 A) filed by Bharath V Surani on December 26, 2025, for A Composite Collar / Coupling For Joining Pvc–mild Steel–pvc Composite Pipes With Enhanced Strength, Leak Tightness, And Corrosion Resistance.

Inventor includes Bharath V Surani.

The application for the patent was published on October 09, 2026, under issue no. 41/2026.

Abstract: A composite collar or coupling for joining PVC–MS–PVC composite pipes, comprising an inner PVC lining, a mild steel reinforcement sleeve, and an outer PVC protective layer. The collar ensures leak-tight, corrosion-resistant, and high-strength joints while maintaining structural continuity across pipe connect...