In the patent application, in order to better protect our own proprietary technology, some key points in the invention and creation are blurred?

In patent application, in order to better protect our own proprietary technology, it is normal and legal to blur some key points in invention and creation, such as a certain formula ratio: A1%,B18.9,C29.8, and the rest is D, which can be written as A, 8-15%, B, 15-25%, C.