The EVERY Co and Onego Bio were discussing a $400m merger before talks broke down, according to court documents.
Alt-egg startups The EVERY Company and Onego Bio had planned to create a new company, but Onego Bio later sued its rival.
The lawsuit, filed in a Wisconsin court, seeks to invalidate one of The EVERY Co's patents covering the production of ovalbumin via precision fermentation.
The dispute centers on whether Onego is infringing a “foundational” patent from The EVERY Co covering ovalbumin expression in a range of hosts.
The EVERY Co has urged the court to dismiss the lawsuit.
Author's summary: Merger talks failed between The EVERY Co and Onego Bio.