In addition to the registration formalities mentioned in Article L. 143-16, sales or assignments of goodwill comprising trademarks or service marks, industrial designs or models, as well as pledges of goodwill comprising patents for invention or licences, trademarks or designs, must be registered with the National Institute of Industrial Property, on pain of unenforceability against third parties, of the sales, assignments or pledges insofar as they apply to patents for invention and licences, trademarks or service marks, industrial designs and models.
Patents for inventions included in the transfer of a business shall remain subject for their transfer to the rules set out in Articles L. 613-8 et seq of the Intellectual Property Code.