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NikeGranted patentClothing & sportInterest 4/10

Nike patents shoe uppers with knit pieces held together by melted plastic

Patent drawing
Patent drawing from the official filing.

Nike describes a footwear upper made of separate knit sections that are connected by a molded thermoplastic polymer. This plastic material fuses the borders of the individual knit elements together to create a single component. The design also includes a second layer containing elastic threads for stretch.

Why it mattersThis filing details a specific manufacturing technique that could make shoe construction more durable or allow for more complex shapes in the upper part of the shoe.

In the filing’s own words

An upper may include a plurality of knit elements linked together by a molded thermoplastic polymer element comprising a thermoplastic polymer, each of the knit elements being discrete, where each of the knit elements comprises a border that is at least partially surrounded by the molded thermoplastic polymer element. Further, an article of footwear may include a plurality of knit elements linked together by a molded thermoplastic polymer element comprising a thermoplastic polymer, each of the knit elements being discrete, where each of the knit elements comprises a border that is at least partially surrounded by the molded thermoplastic polymer element.

What exactly they claim (claim 1)

1. A knitted component for an article of footwear, the knitted component comprising: a first layer forming a first side; and a second layer forming a second side opposite to the first side; wherein the first layer comprises a plurality of knit elements linked together by a thermoplastic polymer material that is fused, and wherein each of the plurality of knit elements comprises a perimeter that is at least partially surrounded by the thermoplastic polymer material; and wherein the second layer comprises a knit element that comprises an elastomeric filament.

Facts

Company
Nike (NIKE, Inc.)
Official title
Knitted component having at least one thermoplastic polymer element
Patent number
US12753535B2
Application number
19205466
Filed
May 12, 2025
Granted
Oct 6, 2026
Inventors
2
Claims
27

Classified under

D04B 1/24 Textiles & paperA43B 1/028 Human necessitiesA43B 1/04 Human necessitiesD04B 1/16 Textiles & paper

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.