Sonoco Products. has filed a patent for a one-piece paper lid and container system. The lid includes a base with a circumferential bead that can extend radially, and a skirt with inner protrusion. The design allows for easy application to containers. GlobalData’s report on Sonoco Products gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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Data Insights Sonoco Products Co - Company Profile

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According to GlobalData’s company profile on Sonoco Products, Magnetic lids was a key innovation area identified from patents. Sonoco Products'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.

Patent filed for a one-piece paper lid for containers

Source: United States Patent and Trademark Office (USPTO). Credit: Sonoco Products Co

A newly filed patent (Publication Number: US20240002108A1) describes a one-piece paper lid for containers. The lid includes a base with a central and peripheral portion, a circumferential bead that can extend radially inwards or outwards, and a skirt with an outer sidewall, inner sidewall, and upwardly extending curl. When the circumferential bead is in the outward position, the skirt's diameter changes, and the height of the bead decreases by 20-60%. The lid is designed to have minimal flex when the bead is in the outward position, and the inner protrusion on the inner sidewall is continuous.

The patent also details a method for making the paper-based lid, involving deep drawing the blank with a device, forming the circumferential bead, folding the skirt to create the upwardly extending curl, knurling the skirt, and forming the inner protrusion. The process includes compressing the deep drawn blank into a mold to form the bead and applying different pressures to create the inner protrusion. The method ensures that the lid is made from at least 95% paper material, highlighting its eco-friendly design. Overall, the patent aims to provide a unique and efficient paper lid solution for containers, emphasizing ease of manufacturing and environmental sustainability.

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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.