% Expired Patents = 28.6

Forward Citations = 32

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1 inventor (with patents filed for the assignee):

David Philip Cook (7 out of 32 patents)

7 patents: Sort by Forward Citations

1. 11002167 - Wireless power transfer system (2021-05-11),

2. 10473012 - Battery leasing and wireless power transfer for passenger rail (2019-11-12),

3. 10385807 - Efficiency and emissions improvements for natural gas conversions of EMD 2-cycle medium speed engines (2019-08-20),

4. 9835066 - Efficiency and emissions improvements for natural gas conversions of EMD 2-cycle medium speed engines (2017-12-05),

5. 9752481 - Locomotive and transit system efficiency and emissions improvements (2017-09-05),

6. 9751540 - Hybrid systems for locomotives (2017-09-05),

7. 9200554 - Hybrid systems for locomotives (2015-12-01),

Company Overview

Clean Train Propulsion is a leading provider of sustainable electric propulsion systems for trains. Our innovative technology reduces emissions and increases efficiency, helping rail operators meet environmental goals and save on operating costs. With a commitment to quality and reliability, our systems are designed to deliver superior performance and energy savings. Visit our website to learn more about how Clean Train Propulsion is revolutionizing the rail industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

7 Patents

#24 in Fullerton, CA

#9,491 in California

#39,879 in US

Fullerton, CA, United States of America

Clean Train Propulsion

Forward Citations = 32

1 inventor:

David Philip Cook (7 out of 32 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Clean Train Propulsion. Retrieved from https://idiyas.com/company/clean-train-propulsion

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]