After the war he remained a citizen of Czechoslovakia because he was active in the anti-Nazi movement, and worked in a research institute in Rybitví ("Výzkumný ústav organických syntéz").
After the war he remained a citizen of Czechoslovakia because he was active in the anti-Nazi movement, but was not allowed to continue his academic career. He worked in an industrial research institute in Rybitví ("Výzkumný ústav organických syntéz").