ALEXANDRIA, Va., May 26 -- United States Patent no. 12,636,244, issued on May 26, was assigned to The Procter & Gamble Co. (Cincinnati).
"Personal care composition containing a biosurfactant" was invented by Howard David Hutton III (Oregonia, Ohio), Isoken Omosefe Igwekala-Nweke (Springdale, Ohio) and Dean Arthur Zimmerman (Liberty Township, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sulfate-free personal care composition that includes a rhamnolipid surfactant and provides good cleaning and foaming properties. The rhamnolipid surfactant has a single rhamnose head group (i.e., mono-rhamno) and a single lipid tail group (i.e., mono lipid). The single lipid tail group has a carbon chain length of 10 ...