% Expired Patents = 85.7

EPO Patents = 1

Forward Citations = 44

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2 inventors (with patents filed for the assignee):

Gary L Durham (7 out of 9 patents)

Harold S Durham (7 out of 9 patents)

7 patents: Sort by Forward Citations

1. 7719154 - Single field rotor motor (2010-05-18),

2. 7608967 - Single field rotor motor (2009-10-27),

3. 7583000 - Starting system for salient-poled-rotor electric motor (2009-09-01),

4. 7514832 - Single field rotor motor (2009-04-07),

5. 7276831 - Split-pole field-match motor (2007-10-02),

6. 6853110 - Radial flux diode motor (2005-02-08),

7. 6611078 - Flux diode motor (2003-08-26),

Company Overview

Tri-seven Research, Inc. is a leading research and development company specializing in cutting-edge technology solutions. With a track record of innovative projects and a team of experienced professionals, we strive to deliver impactful solutions to our clients and partners.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

7 Patents

#41 in Wichita, KS

#350 in Kansas

#39,929 in US

Wichita, KS, United States of America

Tri-Seven Research, Inc.

Forward Citations = 44

2 inventors:

Gary L Durham (7 out of 9 patents)

Harold S Durham (7 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tri-Seven Research, Inc.. Retrieved from https://idiyas.com/company/tri-seven-research

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]

1 patent (EPO):

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]