A bike seat, a minimal backrest. Or, as the patent says:
despite many enhancements made to aircraft seats, the retracted-up seating still has a certain thickness which remains cumbersome.
Clearly no thickness here. And:
This reduced comfort remains tolerable for the passengers
More like a Greek galley. Isn't lashing patented already?
Ok, ok, I get it. Sorry Airbus for being a bit harsh here. I know a patent is just that and that you probably don't mean ill. Instead of fancy words like "kinematics" and "deformable parallelogram" though, you should simply lobby the IATA to allow passengers to stand up—after all, I've witnessed it happening already in emerging countries.