Will missing coinventors invalidate my patent?

Yes, if you can't locate and add them, per the Federal Circuit's Fortress Iron ruling. §256 offers no mercy.

How do I fix inventorship errors on my patent?

File a §256 correction with oaths from all inventors. But if one's AWOL? Good luck—patent likely dies in litigation.

Does AIA eliminate inventorship as a defense?

No. It repealed §102(f), but courts use §256 to invalidate uncorrectable errors. Debate over, ruling in.

Missing Inventor? Your Patent Just Died, Says Federal Circuit

Imagine pouring years into your invention, filing the patent, then—poof—one missing name and it's all worthless. Federal Circuit just made that nightmare real for everyday innovators.

theAIcatchup Apr 08, 2026 4 min read

Federal Circuit gavel smashing a patent document with a faded inventor name

⚡ Key Takeaways

Federal Circuit holds patents invalid if missing coinventors can't be added. 𝕏
§256's correction language creates a backdoor for invalidity challenges. 𝕏
Big implications for startups and AI inventions with murky authorship. 𝕏

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theAIcatchup

Where law meets technology.

#AIA inventorship #Federal Circuit #Federal Circuit ruling #inventorship errors #missing coinventors #patent invalidity

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Originally reported by Patently-O

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