US Patent 10271513 Closed litter box for pets

A closed litter box for pets including at least one lower module configured for containing granular material for the collection of excrement products. At least one upper module is coupled to the lower module. The closed litter box may be carried by at least one handle at the upper module. A collector for collecting excrement is also included. The handle includes at least a portion of the collector when the collector is placed in an excavated region of the upper module.