ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,056, issued on June 23, was assigned to The Johns Hopkins University (Baltimore).
"Capacitive sweat rate sensor" was invented by Peter Charles Searson (Baltimore), Dong-Hoon Choi (Baltimore) and Dinh-Tuan Phan (Baltimore).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sweat sensor includes a first conductor and a second conductor that are parallel with one another. The sweat sensor also includes a channel disposed between the first and second conductors. The channel is configured to receive a sample of sweat. A measure of capacitance between the first and second conductors changes based at least partially upon a volume of the sweat in the channel."...