Inventors’ Day is a day to recognize the achievements and contributions to society by inventors. Currently seven countries celebrate this day.
Argentina celebrates on September 29th, the birthday of László József Bíró, the inventor of the ballpoint pen.
Austria, Germany, and Switzerland celebrate on November 9th, the birthday of the Austrian-born inventor and Hollywood actress Hedy Lamarr. Lamarr along with composer George Antheil invented frequency hopping, a method of transmitting radio signals by rapidly switching a carrier among many frequency channels. Though earlier versions did exist, Lamarr and Antheil received U.S. Patent 2,292,387 for their “Secret Communications System” in 1942. Berlin inventor and entrepreneur Gerhard Muthenthaler proclaimed the day. The goals are to encourage people towards their own ideas and to remind people of forgotten inventors.
Hungary celebrates on June 13th in memoriam of Albert Szent-Györgyi who registered his national patent on the synthesized Vitamin C in 1941.
Thailand celebrates on February 2nd to commemorate the anniversary of His Majesty King Bhumibol Adulyadej’s allocation of a patent for a slow speed surface aerator on February 2, 1993.
The United States of America celebrates on February 11th. President Ronald Reagan proclaimed National Inventors’ Day on February 11, 1983 (Proclamation 5013). Thomas Alva Edison was born on this day in 1847. He held over 1,000 patents.