Michelin patented a tire for off-road vehicles with a unique tread design. The tread has two layers of materials, narrow grooves with a zigzag pattern, and specific thickness requirements. The first layer material has low hysteresis for improved performance. GlobalData’s report on Compagnie Generale des Etablissements Michelin gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Compagnie Generale des Etablissements Michelin, Anti-skid tyre treads was a key innovation area identified from patents. Compagnie Generale des Etablissements Michelin's grant share as of January 2024 was 60%. Grant share is based on the ratio of number of grants to total number of patents.

Off-road vehicle tire with zigzag grooves and low hysteresis

Source: United States Patent and Trademark Office (USPTO). Credit: Compagnie Generale des Etablissements Michelin

A recently granted patent (Publication Number: US11884106B2) discloses a unique tire design specifically tailored for off-road vehicles. The tire features a crown part with sidewalls and beads, a carcass reinforcement, and a crown reinforcement comprising working and protective reinforcements. The tread of the tire is characterized by a thickness of wearable material of at least 50 mm, consisting of two layers with specific thickness ratios and narrow grooves with a zigzagging shape. The material of the first layer of the tread is selected for low hysteresis, ensuring optimal performance.

Furthermore, the patent details various specific configurations and dimensions of the zigzagging narrow grooves, including their amplitude, depth, and positioning on the tread. The design also incorporates reduced-width zones within the grooves and the presence of bridges to enhance structural integrity. Additionally, the patent emphasizes the importance of phase-shifting the grooves to minimize vibrations and introduces a tear index requirement for the second layer of the tread. These innovative features aim to improve traction, durability, and overall performance of off-road vehicle tires, catering to the unique demands of challenging terrains.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.