What do you mean the patent is invalid?

Invalid patent means that the share of patent right is reduced or becomes zero, that is, it is impossible to maintain its protection or exclusive position for technology or products. Generally speaking, the reasons for patent invalidation can be expiration, non-renewal, withdrawal, invalidation, etc. When the patent expires, its inventor or discoverer will lose the exclusive right to the patent, that is, others can use the patent without obtaining permission or paying patent fees.

Invalid patent is bad news for patent holders. Because the invalidation of patent means losing the protection of exclusive rights, it faces greater competitive pressure in important areas of the market. On the other hand, for competitors, invalid patents mean that they can start to produce products in this field or provide services in this technology, thus gaining greater market share and profits.

Although patent invalidation is a fact that patentees do not want to face, it can also promote technological innovation and market competition. After the patent expires, the technology will become a public space, which can be further improved and applied by other scientific and technological enterprises or new entrants in the market. In addition, the invalidation of patents can also prevent the exclusive right of physical innovation from preventing other members of society from developing or applying these technologies, thus ultimately benefiting society.