How do I submit color drawings in a utility patent application?

To submit color drawings in a utility patent application, you must file a petition under 37 CFR 1.84(a)(2). The petition must include:

1. The fee set forth in 37 CFR 1.17(h)
2. One set of color drawings if submitted via the USPTO electronic filing system, or three sets if not submitted electronically
3. An amendment to the specification inserting the following language as the first paragraph of the brief description of the drawings: ‘The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.’

The petition must explain why color drawings are necessary. Color drawings will only be accepted if the USPTO determines that color is the only practical medium for illustrating the claimed invention.

To learn more:

• color drawings
• utility patent
• drawing petition