SpaceX and Blue Origin Patent Skirmish

SpaceX Challenges Patent Filed by Blue Origin, SpaceRef Business

"An employee of Docket Alarm earlier today posted on tech news blog Slashdot that SpaceX had filled a challenge to the patent owned by Blue Origin for "Sea landing of space launch vehicles and associated systems and methods", which was granted earlier this year. Blue Origin has three months to provide a preliminary response."

Marc's Note: It was bound to happen sooner or later and it is unfortunate as it costs both companies to deal with the challenge. Is this an isolated case or are more patent skirmishes going to be forthcoming?

Keith's note: The Thunderbirds were doing all of these various launch and landing scenarios - on dry land - and in the water - in the 1960s. Who thought all of this up first?