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Inventor

Janice Jianzhao Wang

Inventor
Hockessin, DE, US

Overview

5→
Patents
2017–2019
Patent span
Chemistry
Primary field (CPC C)

Patents· 5 as inventor

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

C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere31%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds25%
E21BEarth or rock drilling25%
C04BLime, magnesia13%
C02FTreatment of water, waste water, sewage, or sludge6%
PatentTitleYear
10,202,533High-temperature high-pressure (HTHP) stable synthetic polymer for water based oil-well servicing fluids201910,113,099High pressure high temperature (HPHT) aqueous drilling mud composition and process for preparing the same201810,023,782Salt-tolerant, thermally-stable rheology modifiers20189,914,790'Low molecular weight graft polymer for scale inhibitor'20189,611,416'Salt-tolerant, thermally-stable rheology modifiers'2017

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2017–2019Patents assigned to ISP INVESTMENTS LLC (4)· patent assignee history
2017Patents assigned to FARRAR DAVID (1)· patent assignee history
2017Based in Yorktown Heights, NY, US· patent location history
2018–2019Patents assigned to ISP INVESTMENTS INC (2)· patent assignee history
2018Patents assigned to HERCULES INC (1)· patent assignee history
2018Patents assigned to HERCULES LLC (1)· patent assignee history
2018–2019Based in Hockessin, DE, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ISP INVESTMENTS LLC42017–2019
ISP INVESTMENTS INC22018–2019
FARRAR DAVID12017
HERCULES INC12018
HERCULES LLC12018
Locations
LocationPatentsSpan
Hockessin, Delaware, US42018–2019
Yorktown Heights, New York, US12017