Patron is the robot descendant of Patrick Star from the year 4017.
Patron fully resembles Patrick, even donning the same type of shorts that his ancestor Patrick wore. The only difference between the two is Patron has two heads, which both speak at the same time. He also has the ability to teleport.
His favorite hobby is Jellyfishing. Proof of this is that in "SB-129," he is holding a Jellyfish Net when he teleports to the futuristic Krusty Krab and said "Did somebody say jellyfishing?" Squidward sees him when he was in the future and he finds SpongeTron. Squidward only sees them briefly. Squidward found SpongeTron and Patron in the futuristic kitchen of the Krusty Krab.
When Squidward says what to do in the future to all the SpongeTrons, the SpongeTrons say "Jellyfishing?" to which Patron appears and says "Did someone say jellyfishing?"
"Did somebody say jellyfishing?"
Since Patron has the ability to teleport to a place of his choosing, has an extra head and that his name is Patron, he may be fully/partially robotic.
When Patron teleports into the futuristic Krusty Krab Kitchen, the effect that he makes has a similar coloration and design like the time machine. However, the sound emitted sounds more mechanical and electrical, furthering implying that Patron is somewhat mechanical.