Knowledge can be represented in different formats. At present, knowledge representation as ontologies is the mainstream, while much less is heard about frames. In order to understand the state-of-the art of knowledge frames application, the authors overviewed recent research work in IEEE Xplore Digital Library, SpringerLink, ScienceDirect, and ACM Digital Library from 2000 till 2020. The overview touched such aspects as knowledge acquisition techniques, constituent parts of frames, the actual state of technologies used, capabilities of frames integration with other formats, and limitations. The results showed that native limitations of knowledge frames lead to creation of hybrid knowledge bases. However, hybrid systems also have known issues in performance and inconsistency of knowledge due to a conflict between paradigms. Moreover, a large part of technologies mentioned is not supported nowadays. The results can be useful for researchers who investigate whether to use knowledge frames for managing knowledge.