A number of yo-yo patents have been granted through the years. These patents cover specific yo-yo innovations, response systems, weighting systems and others. The first US yo-yo patent was recorded in 1866.

External Link

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.