US Patent Issued to PURINA ANIMAL NUTRITION on May 20 for "Manufacture and use of a starch-based substitute fiber material" (Missouri Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,302,929, issued on May 20, was assigned to PURINA ANIMAL NUTRITION LLC (Arden Hills, Minn.).

"Manufacture and use of a starch-based substitute fiber material" was invented by Michael S. Burr (Marthasville, Mo.), Jill A. Davidson (Washington, Mo.), Catherine M. K. Bradley (Washington, Mo.) and Ronald R. Scott (St. Charles, Mo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Substitute fiber materials include at least one starch, at least one acid, and at least one plasticizer. The starch may be ground whole grain, the acid may be citric acid, and the plasticizer may be glycerin. The substitute materials are biodegradable and compostable. Methods involve f...