Apollo Tyres has been granted a patent for a pneumatic tyre design that includes a tread with circumferential and axial grooves, as well as blocks that extend radially between the tread surface and the inner surface. Some of the blocks feature wavy grooves that extend from the circumferential groove inwardly into the block, with the depth of the groove decreasing along its length. Additionally, a portion of the longitudinal side walls of the blocks in the middle tread row includes a step. GlobalData’s report on Apollo Tyres 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 Apollo Tyres, Self-sealing tyres was a key innovation area identified from patents. Apollo Tyres's grant share as of September 2023 was 48%. Grant share is based on the ratio of number of grants to total number of patents.

Patent granted for a pneumatic tyre with wavy grooves

Source: United States Patent and Trademark Office (USPTO). Credit: Apollo Tyres Ltd

A recently granted patent (Publication Number: US11731464B2) describes a pneumatic tyre with innovative features aimed at improving performance and traction. The tyre includes a tread with circumferential and axial grooves, as well as blocks that extend radially between the inner surface of the tread and the tread surface that comes into contact with the ground.

One notable feature of the tyre is the inclusion of wavy grooves within some of the blocks. These grooves extend from a circumferential groove inwardly into the block, with a depth that decreases along its length. Additionally, the tyre includes longitudinal side walls with steps, and the wavy grooves are arranged on the portion of the side wall with the step. The step has a height extending from the inner surface of the tread to the bottom of the groove.

The patent also describes a specific tread pattern for the tyre. The tread includes central circumferential grooves, lateral circumferential grooves, and multiple tread rows. The blocks in each tread row are separated by axial or transverse grooves. The middle tread row includes wavy grooves that alternate between extending from the central circumferential groove and the lateral circumferential groove inwardly into the blocks.

Other features of the tyre include multi-step areas on the longitudinal side walls of the center blocks, zigzag-shaped 3D sipes in the center, middle, and shoulder blocks, and recesses or protrusions on the tread shoulder or edge of the shoulder tread row. The patent also mentions variations in sipe density between the middle and center tread rows, as well as the use of segmented Z-shaped transverse grooves.

Overall, this patent presents a tyre design with unique features aimed at improving traction and performance. The inclusion of wavy grooves, steps on the side walls, and specific tread patterns contribute to enhanced grip and stability on various road surfaces. These innovations may have potential applications in the automotive industry, particularly for vehicles that require high-performance tyres.

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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.