Article R422-54 of the French Intellectual Property Code
The industrial property attorney: 1° Refrains in the same case from advising, assisting or representing clients with opposing interests; he also refrains from accepting a new case if the secrecy of information entrusted by a former client is likely to be violated; 2° Observes professional secrecy: this secrecy extends in particular to consultations he gives to his client, to professional correspondence exchanged as well as to any documents prepared on…