Why do many large companies have thousands of patents, and their employees are graduate students, so they are GG when they are sanctioned by foreign countries?

Many large companies have thousands of patents, and their employees are doctoral students. If it is sanctioned by foreign countries, it will be over, because they may say that these patents are export products. If they are sanctioned by foreign countries, their way out is not a problem, but this is mainly because they are at a disadvantage.