The statistics and visualization of horizontal static characteristics and vertical dynamic characteristics of patent data are analyzed by using chart software, and the overall trend, technology distribution and layout tendency of patents of typical national defense science and technology innovation subjects in the US are also analyzed. It is found that the current US defense science and technology innovation subjects are diverse and strong, technology development is balanced, hot areas are prominent, and the US has recently gradually attached importance to patents distribution to China. Therefore, China should learn from the development experience of the US, plan its technological development path of science and technology, cultivate an enterprise-led innovation pattern, improve the duty invention system, formulate rational game strategies between China and the US, effectively promote the development of defense science and technology, and safeguard national security.

typical American defense science and technology innovation subjects  /  patent development trend  /  layout trend