In a victory for aerospace company SpaceX, the Patent Trial and Appeal Board (PTAB) issued a decision on August 27th canceling 13 claims in a rocket sea-landing patent owned by competitor Blue Origin, a space venture backed by Amazon’s Jeff Bezos.

The patent at issue, U.S. Patent No. 8,678,321 B2 (the “’321 patent”), describes a method of vertically landing a rocket booster on a floating platform after launch.