What are certificates issued after a U.S. patent, and how do they affect the patent?

After the issuance of a U.S. patent, several types of certificates can be issued to amend the patent: Reexamination Certificates Certificates of Correction Post-Grant Review Certificates Inter Partes Review Certificates Derivation Certificates These certificates can modify the patent in various ways. For example, “A certificate of correction corrects errors in the patent and is considered…

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