% Expired Patents = 100.0

Forward Citations = 245

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6 inventors (with patents filed for the assignee):

Yu-Wen Y Chang (7 out of 16 patents)

William Traeger (4 out of 4 patents)

William Grainger (3 out of 3 patents)

4. Michael Johnson (3 out of 3 patents)

5. Pablo De Los Rios (3 out of 3 patents)

6. William Osterholm (3 out of 3 patents)

7 patents: Sort by Forward Citations

1. 7333148 - Deployable monitoring device having self-righting housing and associated method (2008-02-19),

2. 7104496 - Active protection device and associated apparatus, system, and method (2006-09-12),

3. 7066427 - Active protection device and associated apparatus, system, and method (2006-06-27),

4. 7030929 - Deployable monitoring device having self-righting housing and associated method (2006-04-18),

5. 6952646 - Tracking device and associated system and method (2005-10-04),

6. 6831699 - Deployable monitoring device having self-righting housing and associated method (2004-12-14),

7. 6778084 - Interactive wireless surveillance and security system and associated method (2004-08-17),

Company Overview

Chang Industry, Inc. is a leading manufacturing company specializing in precision components for various industries. With state-of-the-art technology and a dedicated team of experts, we provide high-quality products and exceptional customer service. Our commitment to innovation and excellence sets us apart in the industry, making us a trusted partner for businesses worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

7 Patents

#9 in La Verne, CA

#9,501 in California

#39,907 in US

La Verne, CA, United States of America

Chang Industry, Inc.

Forward Citations = 245

6 inventors:

Yu-Wen Y Chang (7 out of 16 patents)

William Traeger (4 out of 4 patents)

William Grainger (3 out of 3 patents)

4. Michael Johnson (3 out of 3 patents)

5. Pablo De Los Rios (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Chang Industry, Inc.. Retrieved from https://idiyas.com/company/chang-industry

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]