Bridgestone has been granted a patent for a sole designed for athletic prosthetic legs. The sole features a uniquely shaped bottom surface with enhanced drainage performance in specific regions, and includes a zig-zag land portion with recesses and protrusions to improve ground contact and stability. GlobalData’s report on Bridgestone 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 Bridgestone, Anti-skid tyre treads was a key innovation area identified from patents. Bridgestone's grant share as of June 2024 was 48%. Grant share is based on the ratio of number of grants to total number of patents.
Athletic prosthetic leg sole with enhanced drainage performance
The patent US12042407B2 describes a specialized sole designed for attachment to the ground contact portion of an athletic prosthetic leg. This sole features a bottom surface that is arc-shaped, conforming to the curvature of the prosthetic's ground contact area. It includes a combination of recesses and protrusions, strategically arranged to enhance performance. The design is divided into two main regions: a curved portion side region and a toe side region, with specific characteristics such as a constant radius of curvature in the toe side region and a larger negative ratio of recess area in the curved portion side region. The sole's structure is further defined by a zig-zag shaped land portion, which includes bent portions and protruding features that contribute to its functionality.
Additional claims elaborate on the specific dimensions and ratios of the sole's regions, emphasizing the relationship between the toe side region and the curved portion side region. The design aims to optimize the interaction between the sole and the ground, with particular attention to the distribution of recesses and the overall shape of the sole. The patent outlines various configurations of the zig-zag shaped land portion, detailing how the widths of these portions vary across different regions of the sole. This innovative design seeks to improve the performance and comfort of athletic prosthetic legs, providing a tailored solution for users engaged in physical activities.
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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.
