EPO Revokes Broad’s CRISPR Patent

Shortly after ruling out the earliest priority dates on a foundational patent for CRISPR gene-editing technology, the European Patent Office rescinded the patent entirely—and more are likely to follow.

Written byJef Akst
| 3 min read

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© BRYAN SATALINOThe Broad Institute of MIT and Harvard University is at risk of losing its dominant position over the intellectual property covering CRISPR gene-editing technology in Europe, after the European Patent Office (EPO) ruled today (January 17) that a foundational patent is revoked because the Broad did not meet EPO requirements to establish that its researchers were the first to use CRISPR in eukaryotes.

In addition to the highly publicized patent dispute between the Broad and the University of California over the rights to CRISPR gene editing in the U.S., the Broad has been fighting to maintain a number of patents over the technology in Europe. The issue revolves around a disagreement between the Broad and Rockefeller University over who should be named as inventors. The majority of patent applications filed by the Broad in Europe failed to name Rockefeller University itself, as well as Rockefeller researcher Luciano Marraffini, both of which were named on several of the documents filed to establish a priority date for the patent as early as December 2012. Changing the listed inventors goes against the EPO’s formal requirements for priority, leading the agency to ...

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Meet the Author

  • Jef (an unusual nickname for Jennifer) got her master’s degree from Indiana University in April 2009 studying the mating behavior of seahorses. After four years of diving off the Gulf Coast of Tampa and performing behavioral experiments at the Tennessee Aquarium in Chattanooga, she left research to pursue a career in science writing. As The Scientist's managing editor, Jef edited features and oversaw the production of the TS Digest and quarterly print magazine. In 2022, her feature on uterus transplantation earned first place in the trade category of the Awards for Excellence in Health Care Journalism. She is a member of the National Association of Science Writers.

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