Paving blocks; Construction materials, namely, concrete paving blocks, concrete pavers, stones, landscape blocks, stone and concrete landscaping walls, stones, and segmental retaining wall units; Building stones; stone pavers; stone stair treads; stone slates; landscaping stones; stone posts; stone veneers; all of the foregoing for both residential and commercial projects

Concrete blocks preassembled into mats

Downloadable computer software for use in designing permeable interlocking concrete pavements