Erik Wallenberg

[1] In 1943, waiting to get accepted at Lund University, Wallenberg got a job as lab assistant at Åkerlund & Rausing, a local firm manufacturing food packaging.

Finally, reportedly when ill with fever, Wallenberg got the idea of using one single sheet of paper rolled into a cylinder and folded from two different sides, creating a mathematical tetrahedron.

[5] The Royal Swedish Academy of Engineering Sciences has called the Tetra Pak packaging system one of Sweden's most successful inventions of all times.

The development of the triangular tetrahedron carton package, the rectangular Tetra Brik, was represented at the 2011 exhibition Hidden Heroes – The Genius of Everyday Things at the London Science Museum/Vitra Design Museum, celebrating "the miniature marvels we couldn’t live without".

[6][7][8][9] Despite the positive attention of the tetrahedron, Wallenberg did not get due recognition for the invention until 1991, when he was awarded the Grand Gold Medal by The Royal Swedish Academy of Engineering Sciences for "his ideas and efforts in the development of the packaging system Tetra Pak".