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22.02.2022 |

CRISPR/Cas patents: ethical boundaries strengthened

Controversial claims amended or deleted

22 February 2022 / Following an opposition filed by Testbiotech, the European Patent Office (EPO) has amended a patent on CRISPR/Cas (EP 3401400) gene scissors. The Nobel Prize laureates, Jennifer Doudna and Emmanuelle Charpentier, are named among the inventors in the patent. The claims covering human, animal and plant cells were deleted, and intervention in the human germline explicitly excluded.

Testbiotech filed the opposition because the patent did not exclud human germline interventions or the commercial usage of human embryos, and therefore failed to fulfil legal requirements. A further reason for filing the opposition were patent claims on genetic changes in animals that would have been likely to cause suffering. According to Testbiotech, this final point still needs further clarification after the decision.

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