Inventor

Shirley C. Tsai

Inventor
Pittsburgh, PA, US

Overview

14→
Patents
1979–2015
Patent span
Chemistry
Primary field (CPC C)

Patents· 14 as inventor

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

C10Gprimary
C10GCracking hydrocarbon oils27%
B05BSpraying apparatus23%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests18%
E21BEarth or rock drilling14%
A61MDevices for introducing media into, or onto, the body9%
B03BSeparating solid materials using liquids or using pneumatic tables or jigs5%
C07CAcyclic or carbocyclic compounds5%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1982Patents assigned to GULF RESEARCH DEVELOPMENT CO (8)· patent assignee history
1979–1982Based in Pittsburgh, PA, US· patent location history
1985Patents assigned to OCCIDENTAL RES CORP (1)· patent assignee history
1985–2015Based in Irvine, CA, US· patent location history
2013–2015Patents assigned to TSAI CHEN S (2)· patent assignee history
2013–2015Patents assigned to TSAI SHIRLEY C (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GULF RESEARCH DEVELOPMENT CO81979–1982
TSAI CHEN S22013–2015
TSAI SHIRLEY Cself22013–2015
OCCIDENTAL RES CORP11985
Locations
LocationPatentsSpan
Pittsburgh, Pennsylvania, US81979–1982
Irvine, California, US61985–2015