What is a patent? Is to enjoy exclusive benefits. The patentee has the right to enjoy the economic benefits arising from the patent. If others want to produce, they have to ask my permission. If they want my permission, they must give me money.
The equipment developed by unit A is produced by unit B. How to coordinate the interests of the two units? With a patent in the middle, many problems will be much easier to solve. A unit justifiably takes money, and B unit justifiably produces. If there is contradiction, it is easy to distinguish right from wrong.
One of the biggest drawbacks of China's military industry is the weak protection of intellectual property rights, including patent rights, which has a great negative impact on the improvement of our overall technical level.