ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,232,515, issued on Feb. 25, was assigned to Cambridge Crops Inc. (Boston).

"Compositions and methods for polymer based shelf life extension" was invented by Adam M. Behrens (Cambridge, Mass.), Sezin Yigit (Arlington, Mass.), Laith M. Abu-Taleb (Washington), Nadia S. Hallaj (Cambridge, Mass.), Colin D. Preston (Boston), Samantha E. Roman (Cambridge, Mass.) and James L. Sugarman (Boston).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to compositions, solutions, and methods for extending the shelf life of food compositions. For example, the disclosure is directed to food compositions or solutions comprising silk fibroin. In so...