US Patent Issued to Lumifoil on June 23 for "Light-emitting electrochemical cell, security element, security system, method of operation and method of production" (Swedish Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,666,787, issued on June 23, was assigned to Lumifoil AB (Umea, Sweden).

"Light-emitting electrochemical cell, security element, security system, method of operation and method of production" was invented by Christian Larsen (Umea, Sweden), Andreas Sandstrom (Tavelsjo, Sweden), Shi Tang (Umea, Sweden), Patric Stafshede (Umea, Sweden) and Ludvig Edman (Umea, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light-emitting electrochemical cell (1, 1', 1", 1'") comprises a substrate (10), a first electrode (11), an emission layer (13), contacting the first electrode (11) and providing a first 2D pattern, which is made up by the emission layer being vi...