Westlake Village, CA, United States of America

Hersh Acoustical Engineering, Inc.

Calculating rank

USPTO Granted Patents = 2

Forward Citations = 69

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4 inventors (with patents filed for the assignee):

Bruce E Walker (2 out of 2 patents)

Alan S Hersh (2 out of 5 patents)

Larry Heidelberg (1 out of 1 patent)

4. Edward J Rice (1 out of 3 patents)

2 patents: Sort by Forward Citations

1. 6201872 - Active control source cancellation and active control Helmholtz resonator absorption of axial fan rotor-stator interaction noise (2001-03-13),

2. 5979593 - Hybrid mode-scattering/sound-absorbing segmented liner system and method (1999-11-09),

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USPTO Data Jan 1 1976 - Oct 27 2026

2 Patents

#77 in Westlake Village, CA

#21,028 in California

#94,953 in US

Westlake Village, CA, United States of America

Hersh Acoustical Engineering, Inc.

Forward Citations = 69

4 inventors:

Bruce E Walker (2 out of 2 patents)

Alan S Hersh (2 out of 5 patents)

Larry Heidelberg (1 out of 1 patent)

4. Edward J Rice (1 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hersh Acoustical Engineering, Inc.. Retrieved from https://idiyas.com/company/hersh-acoustical-engineering

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]