Quartz:

Apple’s product launches are notoriously secretive, but the Cupertino, California tech giant is sure to do one thing ahead of a big reveal: file trademark paperwork in Jamaica.

It did this for Siri, the Apple Watch, macOS, and dozens of its major products months before the equivalent paperwork was lodged in the United States. Likewise, Google, Amazon, and Microsoft routinely file trademarks for their most important products in locales far flung from Silicon Valley and Seattle.

And:

The tech giants are exploiting a US trademark-law provision that lets them effectively claim a trademark in secret. Under this provision, once a mark is lodged with an intellectual property office outside the US, the firm has six months to file it with the US Patent and Trademark Office (USPTO). When the firm does file in the US, it can point to its original application made abroad to show that it has a priority claim on the mark.

Loopholes. Where would we be without them?