Erik Rotheim

He filed the United States patent application on 30 September 1927 and it was approved on 7 April 1931.

The following year Rotheim negotiated an agreement for the use of his patent with paints, varnishes and liquid bean waxes, but commercial success was initially limited.

In 1931, a separate foundation, Rotheim Spraying System, was formed for the exploitation of patent rights in the international market.

[4][5] Improvements to the underlying principle of the spray head by Americans Lyle D. Goodhue and William N. Sullivan allowed the technology to be further adapted, first with the Aerosol bomb for insect control, and later in various other applications.

[6][7] Norway Post celebrated Rotheim's invention by issuing a commemorative stamp in 1998.