Patents are engines of growth and are critical to the vitality of the pharmaceutical industry. They create the incentive for pharmaceutical companies to maintain their investments to find new and better cures for global health issues, and to improve the health of people around the world. From an economic perspective, patents also give their holders an upper hand over other competitors. In Vietnam, many generic pharmaceutical companies try to illegally use others' patented inventions in their own products, in order to gain an unfair advantage and compete with the patentees' drugs.