ALEXANDRIA, Va., July 16 -- United States Patent no. 12,667,301, issued on June 30, was assigned to The Regents of The University of Michigan (Ann Arbor, Mich.).
"Transepidermal water loss measurement device" was invented by Xudong Fan (Saline, Mich.) and Anjali Devi Sivakumar (Ann Arbor, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Transepidermal water loss (TEWL) measurement approach is presented that achieves accurate and continuous monitoring completely independent of ambient environmental variations. This new measurement approach uses short dry air purges to dry the skin surface and the water vapor collection chamber, thus refreshing the measurement site each time during skin barrier analysis. T...