Proteomics International Laboratories Ltd (ASX: PIQ), based in Perth, Western Australia, has announced a major intellectual property milestone with the granting of a United States patent for its PromarkerEso diagnostic test (Figure 1). The patent strengthens the Company’s position in the world’s largest healthcare market and supports the commercialisation pathway for a first-in-class blood test targeting esophageal adenocarcinoma (EAC), a cancer with poor survival outcomes wh