Do you apply for a patent after mass production?

I suggest you apply for a patent first, and then put it into production to ensure that your rights and interests are maximized. It is understood that there are many such situations in reality, and many companies or individuals will produce first after making new technical solutions. If there is a market, they will consider applying for patent protection. If there is no market, it will go away. This practice can save various expenses such as patent application fees and save some energy. However, this method can be tested by the provisions of the patent law on novelty. If it is finally determined by the Patent Reexamination Board or the court that the technical scheme has been made public through its own use and loses its novelty, it can only bear the legal consequences of invalid patent. After the patent is invalid, the technical scheme will enter the public domain and be used by everyone at will. The inventor's wisdom, energy and financial resources invested in the early stage will not get any return, and the consequences are still very serious. In other words, if the product fails to enter the market before applying for a patent, the enterprise will bear the risk itself; If the product is successful and recognized by the market, other companies will flock to imitate it. At this time, the company making the invention, because there is no patent in its hand, can't stop others from hitchhiking. Even if you apply for a patent, the patent application of your peers may be invalid. Because the patent application was made public before, it lost its novelty, and as a result, it made a wedding dress for others in vain, which may ruin the industry. So it is more important for enterprises to calculate small accounts. Apply for a patent before the product is put on the market. In case the product cannot be recognized by the market, at most a part of the patent application fee will be wasted; However, if you don't apply for a patent before putting it into the market and the product is recognized by the market, you will face the situation that the market share will be divided and the fruits of victory will be shared. This cake is much more than the patent application fee. Hope to adopt