For the Inventor, By the Inventor

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Alhambra, CA, United States of America

Hiefo Corporation

USPTO Granted Patents = 4

Forward Citations = 0

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2 inventors (with patents filed for the assignee):

Henry A Blauvelt (4 out of 76 patents)

Wei Hsin (3 out of 3 patents)

4 patents: Sort by Forward Citations

1. 12592546 - Semiconductor waveguide optical gain device with lateral current confinement (2026-03-31),

2. 12456849 - Semiconductor waveguide optical gain device with lateral current confinement or optical mode shaping (2025-10-28),

3. 12431690 - Semiconductor waveguide optical gain device with optical mode shaping (2025-09-30),

4. 12355211 - Semiconductor waveguide optical gain device with optical mode shaping (2025-07-08),

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USPTO Data Jan 1 1976 - Oct 13 2026

4 Patents

#9 in Alhambra, CA

#14,051 in California

#60,641 in US

Alhambra, CA, United States of America

Hiefo Corporation

Forward Citations = 0

2 inventors:

Henry A Blauvelt (4 out of 76 patents)

Wei Hsin (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hiefo Corporation. Retrieved from https://idiyas.com/company/hiefo

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]

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