MUMBAI, India, Nov. 2 -- Intellectual Property India has published a patent application (202641122331 A) filed by Saveetha Institute Of Medical And Technical Sciences on October 13, 2026, for Sustainable Carodboard Chair An Eco Friendly Flat Pack Seation System With Interlocking Tab And Slot Joints, Optimised Clamp Geometry, And Integrated Alingment Markers.
Inventors include Mr. B. Jerwin; Dr. S. Hanish Anand; Dr. A. Tamilarasan; and Dr. Ramya Mohan.
The application for the patent was published on October 30, 2026, under issue no. 44/2026.
Abstract: ABSTRACT The utility patent titled "Sustainable Cardboard Chair" discloses an eco-friendly, flat-pack seating system constructed entirely from 10 mm corrugated cardboard sheets, joined by interlocking tab-and-slot connections and secured by strategically placed clamps, without adhesives or metal fasteners. The invention addresses four documented inefficiencies of conventional cardboard furniture: clamp over-engineering (11 clamps creating 22 connection points), frame complexity requiring precision cutting at each unit, high material waste from complex nested geometries (15% scrap), and multi-step assembly requiring repeated alignment. Through value engineering, the invention achieves a 27% reduction in clamp count (11 to 8), a 25% reduction in cutting time (180 to 135 minutes), a 33% reduction in assembly steps (15 to 10), a 33% reduction in material waste (15% to 10% scrap), and a 16% reduction in COGS (Z850 to Z712). The optimised system comprises 15 total parts — 4 main structural panels (seat, backrest, legs) forming the primary load-bearing frame — connected by 44 joints and tabs, with integrated alignment markers for guided self-assembly in approximately 15 minutes. The system is manufactured at an optimised COGS of Z712, wholesale price of Z1,424 (2x COGS), and retail price of Z2,136 (3x COGS), with a development budget of Z85,000 and a break-even point of 18 chairs per month.
Disclaimer: Curated by HT Syndication.
