Personal care US 12,520,921 B2 Not in force

Hair dryer

This hair dryer offers two distinct ways to blow air. In its first mode, air exits straight out of a central, circular opening on its front face. In its second mode, air flows through a ring-shaped internal path before exiting through a linear slot, and this air is designed to be faster than the air from the central opening.

Why it matters: Advanced Computational Fluid Dynamics (CFD) tools and additive manufacturing techniques have made designing and prototyping complex internal airflow paths, like those described, significantly more efficient and precise since 2024.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: ModerateCustom airflow redirection mechanism, dual outlets

3 AI reinvention directions for this patent

See all three

AI gives you a few directions you could take this. Pick one, and we check whether your version is different enough to patent, then write the filing.

Reinvent this with AI

Where this one came from

Every morning we go through millions of abandoned patents and pick out 15 worth your time. This was one of today’s.

+10