Trademarks = 1

Forward Citations = 149

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3 inventors (with patents filed for the assignee):

John Barry French (3 out of 30 patents)

Charles Robert May (1 out of 1 patent)

David I Russell (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 6825726 - Power amplifier with multiple power supplies (2004-11-30),

2. 6160455 - Derived power supply for composite bridge amplifiers (2000-12-12),

3. 6108219 - DC power converter circuit (2000-08-22),

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

3 Patents

#52 in Markham

#4,368 in Canada

Markham, Canada

Indigo Manufacturing Inc.

Forward Citations = 149

3 inventors:

John Barry French (3 out of 30 patents)

Charles Robert May (1 out of 1 patent)

David I Russell (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Indigo Manufacturing Inc.. Retrieved from https://idiyas.com/company/indigo-manufacturing

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]