% Expired Patents = 87.5

Forward Citations = 34

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4 inventors (with patents filed for the assignee):

Zahra Nazarpoor (7 out of 31 patents)

Stephen J Golden (4 out of 44 patents)

Steve Beal (1 out of 1 patent)

4. Barry N Sprague (1 out of 27 patents)

8 patents: Sort by Forward Citations

1. 9771534 - Diesel exhaust treatment systems and methods (2017-09-26),

2. 9511355 - System and methods for using synergized PGM as a three-way catalyst (2016-12-06),

3. 9511353 - Firing (calcination) process and method related to metallic substrates coated with ZPGM catalyst (2016-12-06),

4. 9511350 - ZPGM Diesel Oxidation Catalysts and methods of making and using same (2016-12-06),

5. 9498767 - Systems and methods for providing ZPGM perovskite catalyst for diesel oxidation applications (2016-11-22),

6. 9486783 - Systems and methods for using copper-manganese spinel as active phase for diesel oxidation applications (2016-11-08),

7. 9433930 - Methods for selecting and applying a layer of Cu—Mn spinel phase to ZPGM catalyst systems for TWC application (2016-09-06),

8. 8845987 - Method for improving lean performance of PGM catalyst systems: synergized PGM (2014-09-30),

Company Overview

Clean Diesel Technologies, Inc. (CDTi) is a leader in advanced emission control technology. The company develops and manufactures sustainable solutions for reducing emissions from diesel and gasoline engines. With a focus on innovation and environmental responsibility, CDTi offers a range of products and services to help customers meet stringent emissions regulations and improve air quality.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

8 Patents

#19 in Ventura, CA

#8,540 in California

#35,924 in US

Ventura, CA, United States of America

Clean Diesel Technologies Inc. (Cdti)

Forward Citations = 34

4 inventors:

Zahra Nazarpoor (7 out of 31 patents)

Stephen J Golden (4 out of 44 patents)

Steve Beal (1 out of 1 patent)

4. Barry N Sprague (1 out of 27 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Clean Diesel Technologies Inc. (Cdti). Retrieved from https://idiyas.com/company/clean-diesel-technologies-cdti

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]