U.S. appeals court says artificial intelligence can't be patent inventor

The United States Patent and Trademark Office (USPTO) is seen in Alexandria, Virginia
The United States Patent and Trademark Office (USPTO) is seen in Alexandria, Virginia, U.S. REUTERS/Andrew Kelly
  • Thaler had asked for patents on behalf of his AI system
  • Court affirms ruling that patent 'inventor' must be human being

(Reuters) - An artificial intelligence system cannot be an inventor under United States patent law, a U.S. appeals court affirmed Friday.

The Patent Act requires an "inventor" to be a natural person, the U.S. Court of Appeals for the Federal Circuit said, rejecting computer scientist Stephen Thaler's bid for patents on two inventions he said his DABUS system created.

Thaler said in an email Friday that DABUS, which stands for "Device for the Autonomous Bootstrapping of Unified Sentience," is "natural and sentient."

His attorney Ryan Abbott of Brown Neri Smith & Khan said the decision "ignores the purpose of the Patent Act" and has "real negative social consequences." He said they plan to appeal.

The U.S. Patent and Trademark Office declined to comment on the decision.

Thaler has undertaken a global effort to win patents for DABUS. He has lost other bids for patents that name DABUS as their inventor in the European Union and Australia.

The PTO and a Virginia court both rejected two Thaler applications for DABUS patents, covering a beverage holder and a light beacon, because the system is not a human being.

Thaler challenged the Virginia decision before the Federal Circuit, which hears patent appeals. Abbott told the Federal Circuit during an oral argument in June that the ruling was "at odds with the plain language and purpose of the Patent Act," which is meant to promote innovation and does not specify that an inventor must be a natural person.

But "there is no ambiguity: the Patent Act requires that inventors must be natural persons; that is, human beings," Circuit Judge Leonard Stark wrote Friday for a unanimous three-judge panel.

Stark said the Patent Act requires inventors to be "individuals." He said that "individual" means a human being, citing the word's ordinary use and how it used in the Patent Act.

"For instance, the Act uses personal pronouns – 'himself' and 'herself' – to refer to an 'individual," Stark said. "It does not also use 'itself,' which it would have done if Congress intended to permit non-human inventors."

Thaler's argument that awarding patents to AI systems would encourage innovation was "speculative," Stark said. He also dismissed Thaler's concerns that denying AI patents would undermine the purpose of patents outlined in the U.S. Constitution to "promote the progress of science and the useful arts."

The case is Thaler v. Vidal, U.S. Court of Appeals for the Federal Circuit, No. 21-2347.

For Thaler: Ryan Abbott of Brown Neri Smith & Khan

For the PTO: Dennis Barghaan of the U.S. Attorney's Office for the Eastern District of Virginia

Read more:

Artificial intelligence can be a patent 'inventor,' U.S. appeals court told

Case to Watch: Can AI be a patent inventor? Virginia judge asked to weigh in

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Blake Brittain reports on intellectual property law, including patents, trademarks, copyrights and trade secrets, for Reuters Legal. He has previously written for Bloomberg Law and Thomson Reuters Practical Law and practiced as an attorney. Contact: 12029385713