Can national defense patents and military patents be owned at the same time?

Of course. National defense patent and military patent are two different concepts and can be owned at the same time. National defense patents refer to patents applied in the field of national defense, including technological inventions in weapons and equipment, military communications, intelligence equipment and other fields. Military patent refers to the patent achievements of military enterprises in technological innovation, mainly involving military manufacturing and research and development. Therefore, national defense patent and military patent are two relatively independent concepts, which can be applied for and owned at the same time.