The US Patent and Trademark Office has issued a new patent to Emmanuelle Charpentier and colleagues for their work on the gene editing technology CRISPR-Cas9. The patent, granted to Dr Charpentier, the Regents of the University of California and the University of Vienna, focuses on systems and methods for using the CRISPR-Cas9 technology in a single guide format, including uses to target and edit or modulate genes, according to ERS Genomics Ltd, an Ireland-based company created to provide access to the technology.