1, in short, the patent protection period of pharmaceutical inventions is 20 years, and the profits obtained by relying on patents during the protection period are huge. However, once the protection period of 20 years has passed and it falls into the public domain, it is impossible to rely on patents to make huge profits. The gap is huge, just like a cliff.
2. The most important impact on pharmaceutical companies is profit on the one hand, and the continuous research and development and innovation of new drug technology on the other hand, so that enterprises can keep developing.