Wichita Falls, TX, United States of America

501 W-N Apache Corporation

Calculating rank

USPTO Granted Patents = 2

Forward Citations = 129

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2 inventors (with patents filed for the assignee):

Clyde A Willis (2 out of 23 patents)

Keith M Haney (2 out of 11 patents)

2 patents: Sort by Forward Citations

1. 4830119 - Top head drive cooling system (1989-05-16),

2. 4821814 - Top head drive assembly for earth drilling machine and components thereof (1989-04-18),

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USPTO Data Jan 1 1976 - Oct 27 2026

2 Patents

#17 in Wichita Falls, TX

#6,310 in Texas

#94,953 in US

Wichita Falls, TX, United States of America

501 W-N Apache Corporation

Forward Citations = 129

2 inventors:

Clyde A Willis (2 out of 23 patents)

Keith M Haney (2 out of 11 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: 501 W-N Apache Corporation. Retrieved from https://idiyas.com/company/501-w-n-apache

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]