 U.S. Patent and Trademark Office issued US Patent No. 11,028,166 for the Companys Fully Human Albumin Binding Domain Fusion Proteins PRINCETON, NJ ACCESSWIRE June 8, 2021 Sonnet BioTherapeutics Holdings, Inc., NASDAQ:SONN a biopharmaceutical company developing innovative targeted biologic drugs, announced today that the United States Patent and Trademark Office USPTO has issued U.S. Patent No. 