Patent information: The Springfree™ Trampoline and FlexiNet™ Enclosures are proprietary trampoline designs protected by a number of international patents, registered designs, and trademarks owned by Board and Batten International Inc. The design objective was to build the world's only safe trampoline. Springfree™ Trampoline products are protected by US Patent 6319174, China Patent ZL02825390.6, NZ Patent, 513331, Registered Designs Aust311568, Euro000582717-0001, Euro000126602-0001, with other patents and registered designs pending. Technology patents cover the following design elements and are either pending examination and/or proceeded to national grant: rod based trampoline concept, visual edge, proprietary rod retaining cleat system, FlexiNet™ safety enclosure, rod safety systems, soft edge trampolines, round rod based trampolines, and oval trampolines. All Springfree™ Trampoline models are springless, with no springs and provide the next generation jumping option.