Emmanuelle Charpentier and Jennifer Doudna are winners of this year's Nobel Prize in Chemistry. They were honoured for the ground-breaking discovery of the CRISPR-Cas9 system, now widely used as a genomic editing tool that has revolutionized medicine. After the decision of the Nobel Committee had been announced, Charpentier noted that this success was possible thanks to, inter alia, dr. Krzysztof Chyliński, co-discoverer of the family of patents describing the use of CRISPR / Cas9.