Mayr-Melnhof Karton has patented a blank for creating three-dimensional structures from paper, cardboard, or plastic. The blank includes lateral surfaces and tabs for folding, with creasing lines and grooves produced without material removal. This innovation aims to enhance the structural integrity of folding boxes and packages. GlobalData’s report on Mayr-Melnhof Karton 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 Mayr-Melnhof Karton, Sustainable packaging paper coating was a key innovation area identified from patents. Mayr-Melnhof Karton's grant share as of January 2024 was 63%. Grant share is based on the ratio of number of grants to total number of patents.

Patent granted for laser-produced grooves in three-dimensional structure blanks

Source: United States Patent and Trademark Office (USPTO). Credit: Mayr-Melnhof Karton AG

A recently granted patent (Publication Number: US11866235B2) discloses a unique blank for producing three-dimensional structures made of paper, cardboard, or plastic, such as packages. The blank includes lateral surfaces and bottom/cover tabs connected by mechanically produced creasing lines without material removal. Additionally, grooves formed by a laser intersect with the creasing lines to absorb residual stresses, enhancing the structural integrity of the folded state. The grooves can be arranged in decorative patterns or different partial surfaces, providing versatility in design options for the three-dimensional structures.

Furthermore, the patent extends to folding boxes made of cardboard, paper, or similar materials, featuring lateral walls and tabs connected by creasing lines and grooves produced by lasers. These grooves, intersecting with the creasing lines, contribute to absorbing residual stresses and improving the overall strength of the folding box. The design allows for the formation of decorative patterns or different partial surfaces within the lateral walls, offering customization possibilities. The folding boxes can be utilized as packages for storing various goods, including cigarettes, with a focus on transport and storage efficiency for both pourable and non-pourable items.

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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.