Huaqing LIAO

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Charlotte, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Hearing protection calibration adapter device
- Patent number 11,910,167
- Issue date Feb 20, 2024
- HONEYWELL SAFETY PRODUCTS USA, INC.
- May Bridget Wilson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hearing protection calibration adapter device
- Patent number 11,540,071
- Issue date Dec 27, 2022
- RAE Systems Inc.
- May Bridget Wilson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
HEARING PROTECTION CALIBRATION ADAPTER DEVICE
- Publication number 20230086797
- Publication date Mar 23, 2023
- RAE Systems Inc.
- May Bridget WILSON
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
HEARING PROTECTION CALIBRATION ADAPTER DEVICE
- Publication number 20210385594
- Publication date Dec 9, 2021
- RAE Systems Inc.
- May Bridget WILSON
- H04 - ELECTRIC COMMUNICATION TECHNIQUE