It doesn't necessarily make sense that the inventor you mentioned must be the applicant. There are fewer and fewer heroes who fight alone now. Many inventions and patents applied for by core technologies are the wisdom and contributions of many people in large companies. Do you think the technological achievements (patents) that the company paid a lot of money for should belong to the inventors?
In fact, the inventor only made use of the company's equipment and resources and contributed his own strength, and could not hold the patent right. This is the concept of service invention.