Building proper reference ontologies is a hard task. There are a number of methods and tools that traditionally have been used to support this task. These include foundational theories, reuse of domain and core ontologies, development methods, and software tool support. In this context, an approach that has gained increased attention in recent years is the systematic application of ontology patterns. This paper discusses how Foundational and Domain-related Ontology Patterns can be derived, and how they can be applied in combination for building more consistent ontologies in a reuse-centered process.