% Expired Patents = 33.3

EPO Patents = 1

Trademarks = 3

Forward Citations = 46

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11 inventors (with patents filed for the assignee):

David R Sturdy (4 out of 5 patents)

James Derek Gallaher (3 out of 3 patents)

Paul Frederick Olhoeft (2 out of 2 patents)

4. Ronald Lewis Marsh (2 out of 3 patents)

5. Melvin R Phillips (1 out of 1 patent)

6. Ethan T Ogburn (1 out of 1 patent)

7. Daniel B Eaddy (1 out of 1 patent)

8. Oscar Lee Meek (1 out of 6 patents)

9. James T Carter (1 out of 6 patents)

10. Harry D Sturdy (1 out of 9 patents)

11. H David Sturdy (1 out of 2 patents)

6 patents: Sort by Forward Citations

1. 11364509 - Nozzle assembly with articulating nozzles (2022-06-21),

2. 7377827 - Marine propulsion shift control (2008-05-27),

3. 7337758 - Charge motion control valve actuator (2008-03-04),

4. 7111602 - Intake manifold tuning valve actuator (2006-09-26),

5. 4964276 - Engine synchronizer (1990-10-23),

6. 4727837 - Engine governor with emergency throttle limiter (1988-03-01),

Company Overview

Sturdy Corporation is a leading provider of industrial equipment and machinery. With a history of over 50 years in the industry, Sturdy Corporation offers high-quality products and services to clients worldwide. Their expertise lies in manufacturing durable and reliable equipment for various sectors including manufacturing, construction, and agriculture. Sturdy Corporation is committed to innovation, quality, and customer satisfaction.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

6 Patents

#15 in Wilmington, NC

#980 in North Carolina

#44,949 in US

Wilmington, NC, United States of America

Sturdy Corporation

Forward Citations = 46

11 inventors:

David R Sturdy (4 out of 5 patents)

James Derek Gallaher (3 out of 3 patents)

Paul Frederick Olhoeft (2 out of 2 patents)

4. Ronald Lewis Marsh (2 out of 3 patents)

5. Melvin R Phillips (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sturdy Corporation. Retrieved from https://idiyas.com/company/sturdy

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]