Windtree Therapeutics, Inc. is a biotechnology company focused on developing novel surfactant therapies for respiratory diseases and other potential applications. The company's proprietary technology platform includes a synthetic, peptide-containing surfactant that is structurally similar to endogenous pulmonary surfactant and novel drug-delivery technologies being developed to enable noninvasive administration of aerosolized KL4 surfactant. Windtree Therapeutics, Inc., formerly known as Discovery Laboratories Inc., is based in Warrington, Pennsylvania.