% Expired Patents = 80.0

CIPO Patents = 1

Trademarks = 1

Forward Citations = 51

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3 inventors (with patents filed for the assignee):

Gary Lynn Hensley (5 out of 19 patents)

Lee Hilpert (5 out of 9 patents)

Lee Hilpert (0 patent)

5 patents: Sort by Forward Citations

1. 7374529 - Liner for a centrifuge discharge port (2008-05-20),

2. 7255670 - Three phase decanter centrifuge (2007-08-14),

3. 7001324 - Method of retrofitting a decanting centrifuge (2006-02-21),

4. 6823721 - Method and system for mass flow balance accounting (2004-11-30),

5. 6823238 - Selective apparatus and method for removing an undesirable cut from drilling fluid (2004-11-23),

Company Overview

Hutchison Hayes, L. P. is a leading provider of equipment and services for the oil and gas industry. With over 100 years of experience, they specialize in centrifuges, mud systems, and waste management solutions. Their innovative technology and expert team ensure efficient and reliable operations for their clients worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

5 Patents

#844 in Houston, TX

#3,333 in Texas

#51,644 in US

Houston, TX, United States of America

Hutchison Hayes, L. P.

Forward Citations = 51

3 inventors:

Gary Lynn Hensley (5 out of 19 patents)

Lee Hilpert (5 out of 9 patents)

Lee Hilpert (0 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hutchison Hayes, L. P.. Retrieved from https://idiyas.com/company/hutchison-hayes

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 (CIPO):

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]