The footwear giant's application describes offering crypto wallets and "downloadable mobile applications for providing access to crypto collectibles, crypto art and application tokens" — as well as operating an online marketplace featuring footwear and clothing.

Its document also sets out plans for "providing a digital currency or digital token for use by members of an online community," and enabling transactions to be completed using "unconventional currency systems."

Elsewhere in the document, Nike sets out how it wants to reserve the Cryptokicks name for providing "online blogs in the field of crypto collectibles" and offering online computer games such as scavenger hunts, treasure hunts and obstacle courses.

Josh Gerben, a trademark attorney in the U.S. who analyzed the filing on Twitter, said: