https://patentbrief.org/company/interlego-ag Plain-English explanations of patents assigned to Interlego AG, newest first. en-us Sun, 12 Jul 2026 09:29:12 GMT https://patentbrief.org/patent/us/3005282/lego-toy-brick The 1958 patent that defined the iconic LEGO brick with hollow tubes inside, allowing bricks to lock together firmly. Tue, 24 Oct 1961 00:00:00 GMT https://patentbrief.org/patent/us/3005282/lego-toy-brick