What are considered derogatory remarks in a patent specification?

According to MPEP 608.01(r), derogatory remarks in a patent specification are:

“statements disparaging the products or processes of any particular person other than the applicant, or statements as to the merits or validity of applications or patents of another person.”

This means you should avoid criticizing specific inventions, products, or patents of others in your patent application. Instead, focus on describing your invention’s advancements without disparaging existing technologies.

To learn more:

• derogatory remarks
• patent specification
• prior art
• MPEP guidelines