Herbicide-Degrading Enzyme Patent Wrongly Issued, Petitioner Says

(March 30, 2023, 11:06 AM EDT) -- ALEXANDRIA, Va. — A biotechnology company maintains in a petition for post-grant review (PGR) that the Patent Trial and Appeal Board should cancel all claims of a recently issued patent covering transgenic plant cells that express an enzyme that confers herbicide resistance for inadequate written description and lack of enablement....

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