Pat-tron fully resembles Patrick, even donning the same type of shorts that his ancestor Patrick wore. The only difference between the two is Pat-tron 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 asks "Did somebody say jellyfishing?"
Squidward sees him and SpongeTron in the futuristic kitchen of the Krusty Krab when he is in the future.
"Did somebody say jellyfishing?"
Since Pat-tron has the ability to teleport to a place of his choosing, has an extra head and that his name is Pat-tron, he may be fully/partially robotic.
When Pat-tron 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 Pat-tron is somewhat mechanical.
Pat-tron has one of the shortest cameos in SpongeBob SquarePants; about less than 5 seconds show him on screen.