IANAL. The author of this library is not trademarking the name Lego and the library has nothing to do with children&#x27;s toys or any kind of creative&#x2F;building work. Given that it&#x27;s possible to trademark two identical names in different industries (s: <a href="http:&#x2F;&#x2F;www.avvo.com&#x2F;legal-answers&#x2F;can-i-trademark-a-similar-name-in-a-different-indu-69533.html" rel="nofollow">http:&#x2F;&#x2F;www.avvo.com&#x2F;legal-answers&#x2F;can-i-trademark-a-similar-...</a>), I&#x27;d say author is in the clear.