US Patent Issued to Hitachi Energy on April 21 for "Privacy-preserving log analysis" (Swiss Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,608,501, issued on April 21, was assigned to Hitachi Energy Ltd. (Zurich, Switzerland).

"Privacy-preserving log analysis" was invented by Carsten Franke (Stetten, Switzerland), Theo Widmer (Birmenstorf, Switzerland), Thomas Locher (Zurich, Switzerland) and Yvonne-Anne Pignolet (Zurich, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method can be used to analyze a log of a device or a plurality of devices of a first entity. The method includes generating an encrypted log by encrypting the log at the first entity, generating an encrypted query by encrypting a query at the first entity, transferring the encrypted log and the encrypted query ...