愛德士水質檢測産品按如下美國專利生産: 4,925,789; 5,429,933; 5,518,892; 5,610,029; 5,620,865; 5,620,895; 5,690,825; 5,700,655; 5,753,456; 5,780,259; 5,985,594; 6,287,797; 6,329,166; 6,387,650; 6,472,167; 6,509,168; 6,730.496; 6,783.950.
全球其他專利版本已在申請或審核中。