Dako has earned its reputation for innovation and quality by introducing the first conjugated antibodies for immunohistochemistry 40 years ago. In the 1960s several companies were producing antisera, but the strength varied greatly, presenting significant challenges for hospitals, which had difficulties using the antisera for the evaluation of patient samples. Niels Harboe realized the importance of obtaining a supply of antibodies for analytical purposes that was of the same strength at all times, therefore he founded his own company, DAKOPATTS. A discovery in early 1967 made it possible to standardize the strength of antibodies in a usable product. Soon antibodies became a useful tool for hospitals, to the benefit of patients all over the world. Since then Dako has continously been a driver in developing the field of cancer diagnostics introducing pharmDx, Special Stains, Image Analysis and Pathology Workflow.