Fremont, CA, United States of America

Tsun Kwan Donald Siu

This inventor holds 3 USPTO granted patents and 4 published patent applications. Top assignee: Ebay, Incorporated. Active years: 2025-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tsun Kwan Donald Siu. Retrieved from https://idiyas.com/inventor/tsun-kwan-donald-siu

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

Calculating rank
USPTO Granted Patents = 3 

% Patents Active = 100.0

Average Co-Inventor Count = 1.4

ph-index = 1


Company Filing History:


Years Active: 2025-2026

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3 patents (USPTO):Explore Patents

Title: Tsun Kwan Donald Siu: Innovator in Non-Fungible Token Watermarking

Introduction

Tsun Kwan Donald Siu is a notable inventor based in Fremont, CA (US). He has made significant contributions to the field of digital asset management, particularly in the realm of non-fungible tokens (NFTs). His innovative approach to watermarking digital assets has garnered attention in the tech community.

Latest Patents

Donald Siu holds a patent for a "Non-fungible token watermarking management system." This invention encompasses methods, systems, and computer storage media designed to provide a smart-contract-based watermarking service. The system allows for the display and removal of digital watermarks on NFTs through smart contract programming. In practice, the system accesses a request to execute a watermark-mining operation on a digital asset, which includes a set of digital watermarking request attributes. Based on these attributes, the system accesses both a digital asset and a digital watermark. The digital asset is then minted as a non-fungible token associated with the digital watermark and a smart contract that governs the display of the watermark. A notification is sent to indicate that the watermark-minting operation has been successfully executed.

Career Highlights

Donald Siu is currently employed at eBay, Incorporated, where he applies his expertise in digital asset management and blockchain technology. His work at eBay allows him to explore innovative solutions that enhance the user experience in online transactions involving digital assets.

Collaborations

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Conclusion

Tsun Kwan Donald Siu is a pioneering inventor whose work in non-fungible token watermarking represents a significant advancement in digital asset management. His contributions continue to shape the future of how digital assets are handled and protected.

Profile summary based on public USPTO records.
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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