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Spence John patents

Spence John is listed as an inventor on 6 patents in our database. Major assignees and classification codes are summarized below.

Inventor statistics
MetricValue
InventorSpence John
Total patents6
First publicationJun 24, 2021
Latest publicationJan 28, 2025

Notable patents

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Recent patents

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Major assignees

Companies most often associated with this inventor's publications.

Top assignees for this inventor
AssigneePatents
Conocophillips Co6

Top CPC classifications

Most common classification codes across this inventor's patents.

Top CPC codes for this inventor
CPCPatents
E21B34/046
E21B19/166
E21B19/0046
E21B43/276
E21B33/0766