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For the Inventor, By the Inventor

Napa, CA, United States of America

Indigo Energy, Inc.


USPTO Granted Patents = 12

% Expired Patents = 41.7

Forward Citations = 360

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2 inventors (with patents filed for the assignee):

goldMedal Christopher W Gabrys (12 out of 55 patents)

silverMedal David R Campbell (2 out of 7 patents)


12 patents:

1. 6806605 - Permanent magnetic bearing (2004-10-19),
2. 6720674 - Device for prevention of power interruptions (2004-04-13),
3. 6710489 - Axially free flywheel system (2004-03-23),
4. 6707187 - Flywheel system with tilt switch (2004-03-16),
5. 6703735 - Active magnetic thrust bearing (2004-03-09),
6. 6664680 - Flywheel device with active magnetic bearings (2003-12-16),
7. 6639370 - Speed control for a flywheel energy storage system (2003-10-28),
8. 6624542 - Flywheel power source with passive generator cooling (2003-09-23),
9. 6585490 - Vacuum regeneration method for a flywheel system (2003-07-01),
10. 6583528 - High performance composite flywheel (2003-06-24),
11. 6570286 - Full magnetic bearings with increased load capacity (2003-05-27),
12. 6486627 - Flywheel uninterruptible power source (2002-11-26),
Company Overview
Indigo Energy, Inc. is a forward-thinking company based in Napa, California, specializing in innovative energy solutions. The organization focuses on developing advanced technologies aimed at enhancing energy efficiency and sustainability. With a commitment to research and development, Indigo Energy explores various domains within the energy sector, including renewable energy sources and energy management systems. Their initiatives are designed to address contemporary energy challenges while promoting environmental stewardship and economic viability.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

12 Patents

#6 in Napa, CA

#6,060 in California

#25,540 in US

#48,129 in the World

Napa, CA (US)
Napa, CA, United States of America

Indigo Energy, Inc.

Forward Citations = 360

2 inventors:

goldMedal Christopher W Gabrys (12 out of 55 patents)

silverMedal David R Campbell (2 out of 7 patents)

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

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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