The Images in the Links will help Identify the Solid Tech Designs I have referred to as worthwhile looking into. As stated the Footer Design is seemingly a Copy by ST and is available through other sources for much less.
The ST Vertical Suspended Footer, is seemingly their design only and not typically found from other sources.
As for footers there are numerous designs that have a extortionate pricing to be found as copies, possibly identical in performance, but just outside Patent Dimensions or another point pertinent to the Patent, to make the Mimics on offer a different product? Certainly not challengeable as a direct copy under Patent Laws.