ALEXANDRIA, Va., April 7 -- United States Patent no. 12,596,959, issued on April 7, was assigned to Nokia Solutions and Networks Oy (Espoo, Finland).

"Method for collaborative machine learning" was invented by Alice Dethise (Stuttgart, Germany), Ruichuan Chen (Stuttgart, Germany), Istemi Ekin Akkus (Stuttgart, Germany), Paarijaat Aditya (Stuttgart, Germany) and Antti Herman Koskela (Espoo, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system comprising: at least one training unit for one or more data owners collaborating to the system for storing private data and at least one encrypted model, said training unit being implemented as a trusted execution environment; at least one aggregator unit for ...