ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,423,681, issued on Sept. 23, was assigned to CrossBar Inc. (Santa Clara, Calif.).

"Cryptocurrency hardware wallet on monolithic chip with common physical countermeasures and secure memory" was invented by Sung Hyun Jo (Sunnyvale, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electronic hardware wallet for conducting cryptocurrency transactions, blockchain transactions, or other secure communications is embodied on a monolithic integrated circuit (IC) die supported on a single substrate. The monolithic semiconductor device can include a non-volatile data store for storing application software executable by the multi-core processor, and the se...