Question: does ykk have a monopoly on zippers?
Answer: How is it that YKK has a monopoly on zippers in the USA? They don't. Talon, the company that invented the zipper in 1913 in Pennsylvania, is still in business, now based in California. ... YKK still dominates apparel manufacturing but Talon has moved production to Asia and is poised to reclaim some of that market share.