ELI5: Explain Like I'm 5

United States patent case law

Okay kiddo, have you ever seen someone invent something really cool, like a new toy or gadget? Well, sometimes people want to make sure they are the only ones who can make or sell that thing. To do that, they can get something called a patent. A patent is like a special certificate that says they are the only ones who can make or sell that thing for a certain amount of time.

But sometimes, two people might have the same idea and both try to patent it. That can be a problem, and they might have to go to court to figure out who really came up with the idea first and should get the patent. That's where patent case law comes in.

Patent case law is a bunch of court cases where people have argued over who should get a patent. Judges wrote down what they thought was fair and right in these cases, and those written down decisions become part of the law.

So now, when new patent cases come up, judges look at what the previous judges said in the old cases to help them decide who should get the patent this time. They use the old case decisions kind of like a map or guide to help them make a fair decision.

So, patent case law is just a bunch of old court cases about people fighting over who should get a patent, and the decisions that the judges made in those cases are now used to help judges today decide who should get patents.