J. C. H. Ellehammer took out over 300 patents from beer vending machines to boats with pneumatic engines.

The company he made is still in business and is making fire-fighting equipment for use at tankers. From 1906 to 1912 he built different kinds of aeroplanes, the last one was a helicopter in 1912.

J. C. H. Ellehammer was the first European man, who flew an aeroplane the 12th of September 1906.