Jonas Patrik Ljungström's multiple technical innovations contributed and earned rewards among others at the General Industrial Exposition of Stockholm (1866), the General Art and Industrial Exposition of Stockholm (1897), Exposition Universelle (1878), Exposition Universelle (1900), the Brussels Geographic Conference (1876), the Centennial Exposition in Philadelphia (1876), and the World's Columbian Exposition in Chicago (1893). While in Philadelphia 1876 he met the Swedish physicist Salomon August Andrée who remained a friend of the family until his death, teaching Ljungström's sons Birger and Fredrik in physics.