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Inventor

WILLIAM J. ANDREWS

Inventor
US

Overview

1→
Patents
2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 1 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C08Fprimary
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds25%
C08LCompositions of macromolecular compounds25%
C09KMaterials for miscellaneous applications, not provided for elsewhere25%
E21BEarth or rock drilling25%
PatentTitleYear
11,136,425Mobility control polymers for enhanced oil recovery2021

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021Patents assigned to CHAMPIONX USA INC (1)· patent assignee history
2021Patents assigned to ECOLAB USA INC (1)· patent assignee history
2021Based in US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHAMPIONX USA INC12021
ECOLAB USA INC12021
Locations
LocationPatentsSpan
US12021