Huhtamaki has patented a tamper-evident feature for containers, comprising a locking tab on the cover panel with a slit and tear-away lines, and a receiving slot on the wall panel with a cut edge. This innovative design ensures secure closure and tamper resistance. GlobalData’s report on Huhtamaki 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 Huhtamaki, Magnetic lids was a key innovation area identified from patents. Huhtamaki's grant share as of March 2024 was 52%. Grant share is based on the ratio of number of grants to total number of patents.

Tamper evident feature for container with locking tab and slot

Source: United States Patent and Trademark Office (USPTO). Credit: Huhtamaki Oyj

A recently granted patent (Publication Number: US11919684B2) discloses a tamper-evident feature for containers, comprising a locking tab connected to the cover panel and a receiving slot in the wall panel. The locking tab includes an intermediate locking slit with tear-away lines and a terminal edge, while the receiving slot has a receiving slit and a receiving cut edge. When engaged, the intermediate locking edge aligns with the receiving cut edge, preventing removal without deformation of the tab or container. The design includes end fold lines, a ribbed extension portion, and minor cut lines for enhanced security.

Furthermore, the patent describes a tamper-evident container with the same features, including wall panels forming a sidewall, a cover panel, and a bottom end construction. The locking tab extends beyond the cover panel, with tear-away lines and a ribbed extension portion. The receiving slot in the front wall panel aligns with the tab, restricting the cover panel's movement once engaged. The design ensures tamper resistance by utilizing a curved shape for the slit and cut edge, end fold lines for reinforcement, and a ribbed extension for added security. Overall, the patented tamper-evident feature and container provide a robust solution for maintaining the integrity of packaged goods and preventing unauthorized access.

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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.