There are numerous prototypes of shelving systems, multilevel shelving systems on casters, folding carts, folding bunk beds, multipurpose transforming folding carts, and the latest being a folding bakers rack, which I am still working on. All of these conform to the patented folding mechanism, except the bakers rack.There will have to be another patent for that project. The bakers rack is potentially a big deal. Many bakeries have not just one or two of these racks, but dozens if not even more. I have figured out a way to fold them with a specially designed hinge that would open up square footage in their factories, the most valuable commodity in business.I already know that it works, but the hinge needs a little more up grading. It will be released as soon as I can find the time to finish the project.