Are there any patents in the military? For example, the United States has applied for many patents for aircraft carriers. If other countries build aircraft carriers, they have to pay patent fees to th

There are definitely patents for military convenience, but they are different from other ordinary patents. They require confidential review and will not be made public. Applications are confidential, and there are not many qualified agencies. It requires a higher level requirements. In short, the process is different and confidentiality may be beyond our imagination.

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