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Inventor

Annie Yi Sun

Inventor
Copley, OH, US

Overview

1→
Patents
2018
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.

C01Bprimary
C01BNon-metallic elements33%
C09KMaterials for miscellaneous applications, not provided for elsewhere33%
E21BEarth or rock drilling33%
PatentTitleYear
9,920,606'Preparation method, formulation and application of chemically retarded mineral acid for oilfield use'2018

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2018Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (1)· patent assignee history
2018Based in Copley, OH, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SCHLUMBERGER TECHNOLOGY CORP12018
Locations
LocationPatentsSpan
Copley, OH, US12018