The scientific name is a flash drive. Because it is plugged into the U port, it is commonly known as a USB flash drive. Its patent is owned by Netac.
The patent claimed by Netac is patent number ZL99117225.6, which was invented by Netac in 1999 and applied for an invention patent in the same year, named "USB" ("USB" is now Netac's trademark). This patent, called "Fast Electronic External Storage Method and Device for Data Processing Systems," was authorized by the State Intellectual Property Office in July 2002. This patent fills the gap in invention patents in the field of computer storage in China in the past 20 years.