ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,481,780, issued on Nov. 25, was assigned to Verizon Patent and Licensing Inc. (Basking Ridge, N.J.).

"Systems and methods for policy-based access to distributed ledger via secure access node" was invented by Ahmed A. Khan (Plano, Texas), Mohammed Alsadi (Redmond, Wash.), Salman Ali Danish Mohammed (Wylie, Texas) and Nityanand Sharma (Tampa, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system described herein may maintain a local copy of a distributed ledger, including a first set of records that each include payload information. The system may maintain a restricted access ledger based on the distributed ledger, including a second set of records...