A resilient mat system has at least one mat with a mat thickness T, an upper layer with an upper layer thickness t, and a plurality of supporting resilient substructure columns, each column having a relatively uniform height h, such that T=t+h, wherein the ratio of h:t>3.5 for values of T> about 0.9...http://www.google.com.au/patents/US7575795?utm_source=gb-gplus-sharePatent US7575795 - Impact absorbing safety matting system with elastomeric sub-surface structure
