% Expired Patents = 20.0

Trademarks = 8

Forward Citations = 16

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8 inventors (with patents filed for the assignee):

Keith Mears (2 out of 3 patents)

James E Smith (2 out of 2 patents)

Brad A Meyerholtz (2 out of 2 patents)

4. Kasandra Coverdale (1 out of 1 patent)

5. James A Smith (1 out of 1 patent)

6. James L Jackson (1 out of 1 patent)

7. Daniel Pitstick (1 out of 1 patent)

8. Lane C Kirby (1 out of 5 patents)

5 patents: Sort by Forward Citations

1. 10889322 - Oscillation limited driven steering track assembly (2021-01-12),

2. 9387881 - Land vehicle steering system including selective inboard and outboard wheels adjustment (2016-07-12),

3. 8813487 - Hydraulic wheel drive system with selectively actuated motor (2014-08-26),

4. 8276376 - Hydraulic circuit with selectively actuated motor (2012-10-02),

5. 8230772 - Spindle with hydraulic passage arrangement and method of manufacture (2012-07-31),

Company Overview

Terra Drive Systems, Inc. is a leading provider of innovative drivetrain solutions for electric vehicles and off-road applications. Our advanced technology and engineering expertise enable us to deliver reliable and efficient products that meet the unique needs of our customers. From electric motors to gearboxes, we offer a comprehensive range of solutions to enhance the performance and sustainability of diverse mobility applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

5 Patents

#1 in Brookston, IN

#735 in Indiana

#51,570 in US

Brookston, IN, United States of America

Terra Drive Systems, Inc.

Forward Citations = 16

8 inventors:

Keith Mears (2 out of 3 patents)

James E Smith (2 out of 2 patents)

Brad A Meyerholtz (2 out of 2 patents)

4. Kasandra Coverdale (1 out of 1 patent)

5. James A Smith (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Terra Drive Systems, Inc.. Retrieved from https://idiyas.com/company/terra-drive-systems

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]