The string you've provided appears to be a unique identifier or a hash, likely associated with a specific patent application filed or published by the on April 14, 2022 .
While the string "FFF99CDEECCB8E5E9E11A6A7B752E48E" is not a standard patent number (which usually consists of 7 or 8 digits), it likely represents an or a hash used in the electronic filing systems of the USPTO Patent Center . US[FFF99CDEECCB8E5E9E11A6A7B752E48E] [2022-04-1...
: The system distinguishes between healthy and COVID-19-affected tissue, then quantifies the extent of the damage. The string you've provided appears to be a