Forward Citations = 51

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4 inventors (with patents filed for the assignee):

Joseph E Vandevier (1 out of 5 patents)

Leo L Roberts (1 out of 2 patents)

Richard F Salant (1 out of 2 patents)

4. Lewis R Shell (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 4330740 - Energizing circuit for providing low voltage starting for submersible (1982-05-18),

2. 4330306 - Gas-liquid separator (1982-05-18),

3. 4275938 - Tandem thrust bearing (1981-06-30),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

3 Patents

#149 in Tulsa, OK

#407 in Oklahoma

#73,904 in US

Tulsa, OK, United States of America

Centrilift-Hughes, Inc.

Forward Citations = 51

4 inventors:

Joseph E Vandevier (1 out of 5 patents)

Leo L Roberts (1 out of 2 patents)

Richard F Salant (1 out of 2 patents)

4. Lewis R Shell (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Centrilift-Hughes, Inc.. Retrieved from https://idiyas.com/company/centrilift-hughes

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]