MUMBAI, India, Oct. 19 -- Intellectual Property India has published a patent application (202611105617 A) filed by Graphic Era Deemed To Be University on September 02, 2026, for A System And Method For Low-Frequency Sound Absorption Using Adaptive Multi-Cavity Microperforated Acoustic Panels.

Inventor includes Rupa Khanna Malhotra.

The application for the patent was published on October 16, 2026, under issue no. 42/2026.

Abstract: The invention relates to architectural and industrial acoustics, and discloses a layered low-frequency sound absorption system and corresponding method using a microperforated panel having micro-perforations of about 0.1 to 1 mm, an adaptive cavity layer divided by partitions into chambers of different and sele...