A more thorough explanation:

Definition: Uncorrectability defense is an argument used in patent infringement cases. It is established by showing that a co-inventor's name was left out of a patent and that the patent cannot be corrected because the named co-inventor acted with deceptive intent.

Example: Let's say that John and Jane worked together to invent a new type of smartphone. They filed a patent application, but only John's name was listed as the inventor. Later, Jane sues a company for infringing on their patent. The company can use the uncorrectability defense by showing that Jane's name was left out of the patent and that John acted with deceptive intent by not including her name. If the court agrees, the patent cannot be corrected, and Jane's lawsuit will fail.

Another example: Tom and Jerry work together to invent a new type of car engine. They file a patent application, but only Tom's name is listed as the inventor. Later, Jerry sues a company for infringing on their patent. The company can use the uncorrectability defense by showing that Jerry's name was left out of the patent and that Tom acted with deceptive intent by not including his name. If the court agrees, the patent cannot be corrected, and Jerry's lawsuit will fail.

The examples illustrate how the uncorrectability defense can be used in patent infringement cases. If a co-inventor's name is left out of a patent, and it cannot be corrected because of deceptive intent, the patent cannot be enforced against infringers.