ALEXANDRIA, Va., June 25 -- United States Patent no. RE50,461, issued on June 24, was assigned to Air8Green LLC (Tracys Landing, Md.).

"Pressurized growing air system for vertical and horizontal planting systems" was invented by Mark R. Prescott (Stephentown, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A Growing apparatus for cleansing air and watering plant, wherein the apparatus includes a modular panel constructed for either vertical or horizontal planting systems, including connecting couplers and end caps for directing water flow from upper to lower channels chambers. Panel consist of 5 channels chambers per section with opposing conical top and bottom set at 45 degree 45-degree angles (FIG. 9-2...