How are CPC symbols used in patent documents?
CPC symbols are used in patent documents to indicate the technical subject matter covered by the invention. According to MPEP 905.01, CPC symbols are applied as follows:
- Invention information: CPC symbols representing invention information are listed first on the patent document and are printed in bold font.
- Additional information: CPC symbols representing additional information are listed after the invention information symbols and are printed in regular font.
The MPEP states: “CPC symbols representing invention information are listed first on a patent document and are identified with bold font. CPC symbols representing additional information are listed after the invention information symbols and are identified with regular font.”
This distinction helps patent examiners and researchers quickly identify the core inventive concepts and additional relevant information within a patent document.
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