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Inventor

Sheila Yeh

Inventor
Orinda, CA, US

Overview

2→
Patents
2013–2014
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

C10Gprimary
C10GCracking hydrocarbon oils50%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry25%
C10MLubricating compositions25%
PatentTitleYear
8,888,993'Treatment of a hydrocarbon feed'20148,540,871'Denitrification of a hydrocarbon feed'2013

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2013–2014Patents assigned to CHEVRON USA INC (2)· patent assignee history
2013–2014Patents assigned to HE ZUNQING (2)· patent assignee history
2013–2014Patents assigned to VERMA AKSHAY (2)· patent assignee history
2013–2014Patents assigned to YEH SHEILA (2)· patent assignee history
2013–2014Patents assigned to ZHOU ZHEN (2)· patent assignee history
2013–2014Based in Orinda, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHEVRON USA INC22013–2014
HE ZUNQING22013–2014
VERMA AKSHAY22013–2014
YEH SHEILAself22013–2014
ZHOU ZHEN22013–2014
Locations
LocationPatentsSpan
Orinda, California, US22013–2014