Without prejudice to the provisions of articles L. 612-4, R. 612-19 and R. 612-48, a patent application may only contain more than one independent claim of the same category (product, process, device or use) if the subject matter of the application relates to:
a) Several products which are related to each other;
b) Different uses of a product or device;
c) Alternative solutions to a particular problem insofar as these alternatives cannot be adequately covered by a single claim.