Hybrid rice is a research project funded by the state and approved by the state. The state organizes scientific research forces across the country to conduct research; Yuan Longping is one of the staff members and receives a salary from the state. So the results belong to the country, not to any individual. If we talk about patents, they should belong to the country.
For example: If your family builds a house and you pay someone else to do the construction for your house, no matter who does the construction, the house belongs to your family. This is the truth.