# Interlego AG — Patents explained on PatentBrief

Interlego AG has 1 landmark patent explained in plain English on PatentBrief.

- [How the Modern LEGO Brick Design Works](https://patentbrief.org/patent/us/3005282/lego-toy-brick) — granted 1961
  The 1958 patent that defined the iconic LEGO brick with hollow tubes inside, allowing bricks to lock together firmly.

**Full profile:** https://patentbrief.org/company/interlego-ag

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_Source: PatentBrief — https://patentbrief.org. Plain-English explanations of US patents._