About 4 Trademarks found that are owned by Kallenbach Inc.

META ROCKS

Onsite wastewater treatment system of 50,000 gal/day or less for removal of all nitrogen species present in wastewater comprised of a vessel made of any material suitable for containing microorganisms, for example, concrete, fiberglass-reinforced polymer, or polyethylene, and a medium for growing microorganisms made of any substance or material that is suitable for growing microorganisms, whether attached or suspended, for example, sand, rock, air, water, peat, wood chips, or manufactured media

Color is not claimed as a feature of the mark.

Lightweight media for growing microorganisms for use in a variety of biological and/or biochemical processes or for chemically treating wastes without microorganisms, the media being comprised of a mass of polymeric foam, such as polyurethane foam, having an outer region enclosing an inner region, with a plurality of fragments of an inorganic material, such as sand, at least partially embedded in the outer region