There may be come confusion about what constitutes a separate, feminist or other, epistemology. A feminist might try to understand the oppression of women through the way truth gathering and legitimizing mechanisms work in her society. A feminist as a person with unique understanding of the society she is studying and thus able to understand mechanisms as having latent capacities to oppress women.
This is the privileged epistemology state of understanding, the feminist is not in a privileged position because she (or he!) is a certain gender, but rather because they have the advantage of being able to attempt to find truth from a particular conceptual angle. Each different understanding could not be construed as separate epistemology, because many different ways of understanding may be complied in order to access the truth. They all also have to rely on the same fundamental rational operations that make all communication and thought intelligible.
This is the privileged epistemology state of understanding, the feminist is not in a privileged position because she (or he!) is a certain gender, but rather because they have the advantage of being able to attempt to find truth from a particular conceptual angle. Each different understanding could not be construed as separate epistemology, because many different ways of understanding may be complied in order to access the truth. They all also have to rely on the same fundamental rational operations that make all communication and thought intelligible.