Meet Matthew Sleman, the boy who thought about patents at 5 and turned ordinary plastic building bricks into color-changing blocks that earned him one of the youngest US patents
Matthew Sleman’s innovation journey began when he was just 5 years old and became curious about intellectual property and patents. Looking at his plastic, interlocking building bricks, he began thinking about ways to make them more fun. His brains...

The Idea Began With Curiosity
Matthew was only 5 when he first became interested in intellectual property. He wanted to come up with an original invention that could receive a patent, which led him to look more closely at the plastic, interlocking bricks he used.As he considered possible changes, Matthew concentrated on one objective: finding a way to increase the fun of the bricks. His brainstorming eventually produced the idea of giving the blocks an unusual feature, the ability to change color.
Testing a New Kind of Building Brick
Coming up with the concept was only the beginning. Matthew then explored various techniques to create the color-changing effect. He experimented with different ways of coating the plastic bricks to see how they could be made to change color. Matthew moved forward with a patent application for his color-changing building bricks.A Patent Issued in May 2023
The invention eventually obtained a U.S. patent. U.S. Patent Number 11,642,606, spanning Matthew’s color-changing building bricks, was issued in May 2023.The patent made Matthew one of the youngest U.S. patent holders. It also represented the progression of a concept that had started when he was 5 years old, when his interest in intellectual property prompted him to think differently regarding a daily set of building bricks.
Sharing the Patent With His Class
Matthew did not keep the achievement to himself. Proud of his accomplishment, he brought his patent to school and showed it to his class.His story focuses on a straightforward chain of events: curiosity about patents led Matthew to rethink his plastic building bricks, brainstorming produced the color-changing concept, experimentation explored different coatings, and support from his parents helped him apply for a patent. That effort resulted in U.S. Patent Number 11,642,606, issued in May 2023.
Source: USPTO
FAQs:
1. Who is Matthew Sleman?2. What did Matthew Sleman invent?
Matthew developed color-changing plastic, interlocking building bricks. He experimented with different methods of coating the bricks.
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