Invacare‘s patented wheelchair design features front and rear anti-tip wheels, independently suspended drive assemblies, and a unique linkage system. The innovative design allows for improved obstacle traversal and stability. GlobalData’s report on Invacare gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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Data Insights Invacare Corporation - Company Profile

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According to GlobalData’s company profile on Invacare, HEV energy management was a key innovation area identified from patents. Invacare's grant share as of February 2024 was 68%. Grant share is based on the ratio of number of grants to total number of patents.

Wheelchair with anti-tip wheels and independent drive assemblies

Source: United States Patent and Trademark Office (USPTO). Credit: Invacare Corporation

A recently granted patent (Publication Number: US11857470B2) discloses a wheelchair design featuring a unique suspension system. The wheelchair includes a frame, a seat, front and rear anti-tip wheels, and drive assemblies with motors and drive wheels. The suspension system mounts the drive assemblies to the frame using a vertical track and follower assembly, allowing for controlled movement. A coupling member connects the rear anti-tip wheels to the drive assemblies, ensuring stability and smooth operation.

Furthermore, the patent details various configurations and components of the wheelchair, such as the positioning of the follower inside the track, the inclusion of biasing members, and the prevention of forward and rearward movement of the drive assemblies. The suspension system is designed to limit the movement of the drive assemblies to linear motion, enhancing the overall performance and safety of the wheelchair. Additionally, the patent covers variations of the wheelchair design, including different coupling mechanisms and configurations, providing versatility in implementation. Overall, the patented wheelchair design offers a novel approach to suspension systems in wheelchairs, aiming to improve user experience and functionality.

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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.