ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,811, issued on April 21, was assigned to HENKEL AG & Co. KGAA (Duesseldorf, Germany).

"Cleaning performance on protein sensitive soilings VI" was invented by Christian Degering (Erkrath, Germany), Susanne Wieland (Zons/Dormagen, Germany), Fabian Falkenberg (Juechen, Germany) and Nina Mussmann (Willich, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "Proteases may include an amino acid sequence having at least 70% sequence identity with the amino acid sequence given in SEQ ID NO:1 over its entire length and, in each case based on the numbering according to SEQ ID NO:1. The protease may have (i) amino acid substitutions, such as 9T, 133A, 144K...