A fact-oriented ontological approach to SAO-based function modeling of patents for implementing Function-based Technology Database

► Function-Oriented Search (FOS) is a new tool for searching patent to find solutions to new problems. ► Function-based Technology Database (FTDB) is a key component of FOS. ► We suggests a fact-oriented ontological approach to implementing an FTDB. ► The proposed approach implements an FTDB for an SAO-based patent retrieval system to support FOS. ► We verified the feasibility of the approach by using it to conduct case studies of patent retrieval.