The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 2026
Filed:
Jun. 07, 2024
Aac Microtech (Changzhou) Co., Ltd., Changzhou, CN;
Zhongyang Wang, Changzhou, CN;
Jie Zhang, Changzhou, CN;
Hezhi Wang, Changzhou, CN;
Chao Wang, Changzhou, CN;
AAG Microtech (Changzhou) Co., Ld., Changzhou, CN;
Abstract
The present disclosure discloses a sound absorption material block having a gradient pore diameter from inside to outside, including: an outer portion having a first pore diameter; and an inner portion encapsulated by the outer portion, having a second pore diameter; the first pore diameter is in a range of 20-200 μm, the second pore diameter is in a range of 1-20 μm; the sound absorption material block has a thickness in a range of 0.5-5 mm. The sound absorption material block in the present disclosure has lower damping property and higher intensity.