Bev Fox, of Sleeping Fox Inc., owns a US Patent on her jewelry clasp, the ‘Chameleon Swivel Lock’. This clasp can be used on chains, beaded pendants, bracelets, as well as hinged designs. The best feature of this clasp is that it locks to prevent jewelry losses. Other benefits are, easy to put on and lock and it can blend into the design. I hope to have it on the market in the near future. For licensing opportunities, please contact Pacific World Marketing Company or Sleeping Fox.