What search tools are recommended in MPEP 904 for patent examiners?
MPEP 904 recommends several search tools for patent examiners to conduct thorough prior art searches:
- Classification indices (e.g., CPC, USPC)
- Patent databases (e.g., USPTO, EPO, JPO)
- Non-patent literature databases
- Internet search engines
- Specialized technical databases
The MPEP emphasizes the importance of using multiple tools: “In addition to searching the invention as described in the disclosure, it is necessary to search for all claimed elements.” (MPEP 904)
Examiners are encouraged to use a combination of these tools to ensure comprehensive coverage of potential prior art sources.
To learn more: