% Expired Patents = 20.0

Forward Citations = 499

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7 inventors (with patents filed for the assignee):

Robert Barry O'Dell (3 out of 9 patents)

Changshi Xu (2 out of 3 patents)

Roland Emlyn Williams (2 out of 17 patents)

4. Samuel Yin Lun Pun (1 out of 5 patents)

5. John M Conrad (1 out of 2 patents)

6. Eun-Kyong Paek (1 out of 2 patents)

7. Xiao Jun Wan (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 7075520 - Key press disambiguation using a keypad of multidirectional keys (2006-07-11),

2. 6956968 - Database engines for processing ideographic characters and methods therefor (2005-10-18),

3. 6955602 - Text entry within a video game (2005-10-18),

4. 6864809 - Korean language predictive mechanism for text entry by a user (2005-03-08),

5. 6801659 - Text input system for ideographic and nonideographic languages (2004-10-05),

Company Overview

Zi Technology Corporation Ltd is a leading technology company specializing in innovative software solutions for businesses. With a focus on cutting-edge technology and customer satisfaction, Zi Technology offers a wide range of products and services to help companies thrive in the digital age. From custom software development to IT consulting, Zi Technology is dedicated to providing top-notch solutions tailored to meet the unique needs of each client.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

5 Patents

#54 in Hamilton

#65 in Bermuda

Hamilton, Bermuda

Zi Technology Corporation Ltd

Forward Citations = 499

7 inventors:

Robert Barry O'Dell (3 out of 9 patents)

Changshi Xu (2 out of 3 patents)

Roland Emlyn Williams (2 out of 17 patents)

4. Samuel Yin Lun Pun (1 out of 5 patents)

5. John M Conrad (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Zi Technology Corporation Ltd. Retrieved from https://idiyas.com/company/zi-technology

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]