1. A computer-implemented method comprising: receiving input identifying a target subject matter; assigning the target subject matter to one or more concepts; identifying a patent pool to screen the target subject matter against based on the one or more concepts assigned to the target subject matter being included in at least one claim of each patent of the patent pool; and assembling a concept pool from claims in the patents of the identified patent pool; receiving input related to concepts in the concept pool, the input including input designating at least one concept of the concept pool as not in the target subject matter; and removing a patent from the patent pool based on the received input related to concepts in the patent pool when the received input designates all of the one or more concepts included in the at least one claim of the patent as not in the target subject matter.