Can psychologists apply for patents for their research results?

I suggest you clarify the concepts of "patent" and "copyright" first. Those who have never heard of doing natural science research can apply for a "patent" for their research results. I only know that the research report is copyrighted. If new equipment, new technology and new methods are invented in the course of research (note that these are not the purpose of natural science research), you can apply for a patent. Simply put, you can't apply for a patent for existing phenomena, theories and things, as well as the results of your discovery, analysis and summary. Only your creation can be patented. As I found after my research, 1+ 1=2. I can't apply for a patent for it, because it's not my invention. But the paper I wrote proved that 1+ 1=2 is copyrighted and cannot be copied. If I invent a device that doesn't exist in the process of research, then I can apply for a patent for this device, but you can't do it. You got it? About the cost. Let's make an analogy. After your research, you find that people will not be hungry when they are full. You wrote a paper and published it. Then you don't have a patent. Other manufacturers produce their own products according to the principle that people are full and not hungry, which has nothing to do with you. However, because you own the copyright of your paper, if the manufacturer quotes your paper in the product promotion and description, then he needs to pay you royalties. If you invent a device during your research, it's called chopsticks. At the same time, a method called grasping with chopsticks was invented. Then you can apply for a patent for this equipment and this method. If the manufacturer tries to produce this equipment, or uses this method to produce it. Then he needs to pay you the patent fee.