37 CFR 1.437 — The drawings

Ninth Edition, Revision 01.2024

• (a) Drawings are required when they are necessary for the understanding of the invention ( PCT Art. 7 ).
• (b) The physical requirements for drawings are set forth in PCT Rule 11 and shall be adhered to.

[Revised, 72 FR 51559, Sept. 10, 2007, effective Sept. 10, 2007]