Elsewhere in her article, Stevenson writes that “the law’s preference for pure substances makes it easier for pharmaceutical companies to satisfy the non-obvious requirement and makes it difficult for indigenous communities to do so.” She uses as an example the neem plant. For centuries, farmers in India used ground neem seed as a natural pesticide. Scientists learned from the Indians how they extracted, identified, isolated, and purified the active components in the seed, and used that knowledge to synthesize the active chemical in a lab. In 1994, W.R. Grace and Agrodyne succeeded in getting a patent on the neem derivatives as an advance over the widely known prior art. Review the Harvard Business Review article, “Strategy and Society” in Chapter