ALEXANDRIA, Va., March 19 -- United States Patent no. 12,250,922, issued on March 18, was assigned to Pretty Litter Inc. (Los Angeles).
"Health monitoring cat litter" was invented by Daniel Joseph Rotman (Los Angeles).
According to the abstract* released by the U.S. Patent & Trademark Office: "Technology is disclosed for a cat litter that can be used to diagnose feline medical conditions. A cat litter contains an additive, e.g., a chemical agent, such as a natural and/or synthetic agent, that changes in color when it comes in contact with cat urine or feces. Based on the color it can be determined whether the cat has a medical condition, such as particular illness. For example, if the litter turns yellow when it comes in contact with the ...