Samson Sky has been granted another patent for the Switchblade, the flying car that has been tested and designed in Central Oregon.

This patent, the Redmond-based company’s sixth, involves the vehicle’s wing-swing design. The patent was granted by the European Union. According to Samson Sky, more patent applications have already been filed on the project.

Sam Bousfield, Samson Sky CEO and designer of the Switchblade, said the patent was necessary to securing a financially stable future for the project.

“Having these design patents on the wing-swing is a vital safeguard for Samson,” said Bousfield in a news release. “Being able to retract the wings and tail into the vehicle, fully protecting them while driving, is key to what makes the Switchblade truly practical for everyday use. No other flying car has ever had that feature.”

Samson Sky also reports having added over $5.5 million to its order books in the last several weeks, with media coverage of their Switchblade’s maiden flight reaching a total potential audience of more than 220 million people.

The Switchblade has demonstrated a maximum driving speed of 125 mph and has an estimated maximum flight speed of 190 mph. The same engine powers the wheels on the ground and the propeller in the air.