% Expired Patents = 12.5

Trademarks = 4

Forward Citations = 61

Loading Chart...

10 inventors (with patents filed for the assignee):

Paul J Lutes (7 out of 7 patents)

Michael Franklin Hughes (4 out of 14 patents)

Ronald A Schuller (3 out of 8 patents)

4. Alan P Tiefenbrun (2 out of 2 patents)

5. James Delwin Gray (2 out of 3 patents)

6. Don Crowder (1 out of 2 patents)

7. Stephen Seymour (1 out of 1 patent)

8. Joseph P Ashurst (1 out of 1 patent)

9. James J Davis (1 out of 1 patent)

10. Michael W Spidell (1 out of 1 patent)

8 patents: Sort by Forward Citations

1. 7334597 - Liquid/vapor bypass valve (2008-02-26),

2. 6644039 - Delivery system for liquefied gas with maintained delivery tank pressure (2003-11-11),

3. 6364605 - Regenerative turbine pump (2002-04-02),

4. D453525 - Turbine pump housing (2002-02-13),

5. 6033196 - Rotary pump (2000-03-07),

6. 5921274 - Internal relief and bypass valve for pumps and piping systems (1999-07-13),

7. 5700140 - Pump with improved bearing arrangement for axial position control (1997-12-23),

8. 5431552 - Vane pump (1995-07-11),

Company Overview

Corken, Inc. is a global leader in the design and manufacture of industrial compressors, pumps, and turbine solutions for the liquefied petroleum gas (LPG) and trucking industries. With over 90 years of experience, Corken is known for its high-quality and reliable products that meet the unique needs of customers around the world.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

8 Patents

#39 in Oklahoma City, OK

#185 in Oklahoma

#35,893 in US

Oklahoma City, OK, United States of America

Corken, Inc.

Forward Citations = 61

10 inventors:

Paul J Lutes (7 out of 7 patents)

Michael Franklin Hughes (4 out of 14 patents)

Ronald A Schuller (3 out of 8 patents)

4. Alan P Tiefenbrun (2 out of 2 patents)

5. James Delwin Gray (2 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Corken, Inc.. Retrieved from https://idiyas.com/company/corken

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]