37 CFR §1.436
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The requirements as to the content and format of claims are set forth in PCT Art. 6 and PCT Rules 6, 9, 10 and 11 and shall be adhered to. The number of the claims shall be reasonable, considering the nature of the invention claimed.