COATING FOR IMPROVING LOUDSPEAKER SOUND QUALITY

Utility Patent Application (A1)

October 28, 2021

Source: USPTO via Sqoop

Applicants: Apple Inc.

Inventors: Juergen Sauer, Veronika Wagner

Aspects are disclosed of an acoustically active coating. The coating is a porous coating having a thickness and including between 2% and 30% by mass of a binder and between 70% and 98% by mass of a zeolite. The coating comprises a plurality of convex shapes connected by concave connectors and has a distribution of pore sizes. Other embodiments are disclosed and claimed.