Johannes Hint, Estonian engineer (b. 1914)
Johannes Rudolph Hint (20 September 1914 – died 5 September 1985) was an Estonian scientist and the only person to create and successfully run a limited company under the communist planned economy of the Soviet Union. With his company, Dessim Ltd, he earned millions for the Soviet Union. His most important scientific invention was the building material silikaltsiit (Laprex), which was developed through the execution of the disintegrator system. His inventions are still widely used in Germany, Austria, the United States, Japan and Russia.