I so wish I had posted a few years ago when I first thought that SpaceX should land on a barge or ship instead of land.
You know, if you can land the craft on land, how is this much different from landing it on a platform?
I mean, the game Lunar Lander is how old? The idea of using retro-rockets to slow your descent onto where you're landing is literally decades old, and was probably shown in early sci-fi shows.
I'm having a hard time understanding how this patent could possibly be adding anything new.
As usual, I hear about the patent system and think "yeah, right, and the monkeys who approve patents get paid for being morons."
Hell, I should think landing a helicopter on a ship or a barge is pretty much all you need to invalidate this. Or Flash Gordon. Or any number of things which have been showing a tail-first landing for the last 50+ years.
Big deal, that flat surface is now a floating platform ... that doesn't change a damned thing about the fact that this is exactly the same as any other VTOL type scenario. Applying thrust is all that's really at play here, and that's just straight physics.