ALEXANDRIA, Va., June 16 -- United States Patent no. 12,306,315, issued on May 20, was assigned to u-blox AG (Thalwil, Switzerland).
"GNSS receiver protection levels" was invented by Seppo Turunen (Tampere, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of determining a posterior error probability distribution for a parameter measured by a Global Navigation Satellite System (GNSS) receiver. The method comprises receiving a value for each of one or more GNSS measurement quality indicators associated with the GNSS measurement of the parameter. The or each received measurement quality indicator value is provided as an input into a multivariate probability distribution model to determine the pos...