Patented drugs

It's simple. First, patents are publicly protected. Hard investment in R&D costs will lead to the disclosure of the technology of the products produced, and once the patent is not authorized due to non-technical problems, or the patent is poorly written, the scope of protection is relatively narrow, which is equivalent to the disclosure of technology. Secondly, even if you apply for a patent, others can carry out further research and development on the basis of your patent. If you are particularly advanced in technology, you will be a stepping stone and a learning object for others. Third, pharmaceutical technology, generally speaking, competitors can not obtain this technology through products, and putting it on the market will not cause technology leakage. Therefore, it is appropriate not to apply for a patent, suspend the application or apply selectively under the condition that the technical secret can be guaranteed. Finally, the exception of patent protection in the medical field is bolar, and others can conduct research and development and apply for drug approval within the patent validity period, which indirectly speeds up the listing of competitors' drugs.