Hallmark Cards has been granted a patent for a writing composition that can be erased or color-changed chemically. The composition includes specific ingredients like phenolic resin, stearic acid, leuco dye, and calcined clay. This innovation allows for erasable writing systems and instruments. GlobalData’s report on Hallmark Cards 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 Hallmark Cards, Intelligent toy robots was a key innovation area identified from patents. Hallmark Cards's grant share as of January 2024 was 65%. Grant share is based on the ratio of number of grants to total number of patents.
A recently granted patent (Publication Number: US11866603B2) discloses a unique writing composition designed for writing instruments. The composition includes a combination of phenolic resin, stearic acid, stearyl alcohol, leuco dye, and an optional additive, along with an inert mineral filler like calcined clay. The proportions of these components are carefully specified, with the phenolic resin, leuco dye, and additives falling within specific weight percentages to achieve the desired writing properties.
Moreover, the composition allows for customization by incorporating additional elements such as pigments or non-leuco dyes, further enhancing the versatility of the writing instrument. The patent also covers the inclusion of various additives like dispersing agents, anti-blooming agents, and scents to tailor the writing experience. The patent extends to the writing instrument itself, detailing its production through injection molding or extrusion, and the possibility of encasing it within a sheath or protective coating layer for durability and aesthetics. This innovative writing composition opens up possibilities for improved writing instruments with enhanced performance and customizable features, catering to a wide range of consumer preferences in the stationery market.
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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.
