ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,218, issued on Sept. 30.
"Energy director releasably sealing single-serve beverage pod" was invented by Sung Oh (West Covina, Calif.) and Zhiyu Zhang (Heyuan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A beverage pod is assembled to allow the upper extension of the filter to separate from the upper rim of the container upon an application of force upon the extension. An energy director may be provided between the extension and the rim such that when a linear vertical high-frequency energy is applied to the energy director, the energy director may melt and releasably join the extension to the rim. At least one of the extension and/or the r...