For the Inventor, By the Inventor

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Hayward, CA, United States of America

Rayvio Corporation

USPTO Granted Patents = 38

% Expired Patents = 84.2

Trademarks = 2

Forward Citations = 257

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14 inventors (with patents filed for the assignee):

Yitao Liao (31 out of 47 patents)

Douglas A Collins (26 out of 26 patents)

Robert C Walker (16 out of 20 patents)

4. Doug Collins (9 out of 19 patents)

5. Li Zhang (9 out of 97 patents)

6. Faisal Sudradjat (7 out of 7 patents)

7. Robert S West (6 out of 7 patents)

8. Saijin Liu (5 out of 5 patents)

9. Wei Zhang (3 out of 4 patents)

10. Sheung Li (3 out of 3 patents)

11. Theodore J De Jony (2 out of 2 patents)

12. Elaine Taylor (2 out of 2 patents)

13. Milan Singh Minsky (1 out of 12 patents)

14. Theodore De Jony (1 out of 1 patent)

Core Competencies:

Ultraviolet Light Emitting Devices

Disinfection Systems

UV-LED Technology

Device Packaging

Luminaire

Water Purification

Semiconductor Devices

Light Emitting Diodes

Boron Doping

Liquid Monitoring

Shaped Encapsulant

Transparent Substrate

38 patents: Sort by Forward Citations

1. 10490597 - Pixel array of ultraviolet light emitting devices (2019-11-26),

2. 10461229 - Package for ultraviolet emitting devices (2019-10-29),

3. 10454005 - Ultraviolet emitting device with shaped encapsulant (2019-10-22),

4. 10439099 - UV light emitting devices and systems and methods for production (2019-10-08),

5. 10403792 - Package for ultraviolet emitting devices (2019-09-03),

6. 10381523 - Package for ultraviolet emitting devices (2019-08-13),

7. 10377643 - Ultraviolet disinfection system (2019-08-13),

8. 10376608 - Ultraviolet disinfection system (2019-08-13),

9. 10363327 - Luminaire with white light LEDs and UV LEDs for lighting and disinfection (2019-07-30),

10. 10326054 - Ultraviolet light emitting device doped with boron (2019-06-18),

11. 10265430 - Ultraviolet light source and methods (2019-04-23),

12. 10258715 - Ultraviolet disinfection system (2019-04-16),

13. 10246348 - Ultraviolet disinfection system (2019-04-02),

14. 10227241 - UV-LED liquid monitoring and treatment apparatus and method (2019-03-12),

15. 10224443 - Semiconductor device and a method of making a semiconductor device (2019-03-05),

Company Overview

Rayvio Corporation, based in Hayward, California, specializes in advanced ultraviolet (UV) light technology. The company focuses on developing innovative solutions for disinfection and sterilization applications, leveraging its expertise in solid-state UV light sources. Rayvio's technology aims to enhance safety and efficiency across various sectors, including healthcare, food processing, and consumer products. By harnessing the power of UV light, Rayvio is committed to addressing critical challenges in public health and environmental sustainability.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

38 Patents

#19 in Hayward, CA

#2,133 in California

#9,033 in US

#17,860 in the World

Hayward, CA, United States of America

Rayvio Corporation

Forward Citations = 257

14 inventors:

Yitao Liao (31 out of 47 patents)

Douglas A Collins (26 out of 26 patents)

Robert C Walker (16 out of 20 patents)

4. Doug Collins (9 out of 19 patents)

5. Li Zhang (9 out of 97 patents)

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

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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