Inventor

Chien K. Tseng

Inventor
El Cerrito, CA, US

Overview

7→
Patents
1976–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 7 as inventor

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

A01Nprimary
A01NPreservation of bodies of humans or animals or plants or parts thereof33%
C07CAcyclic or carbocyclic compounds17%
C07DHeterocyclic compounds17%
C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms17%
C12NMicroorganisms or enzymes8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1980Patents assigned to STAUFFER CHEMICAL CO (5)· patent assignee history
1976–1980Based in El Cerrito, CA, US· patent location history
2021Patents assigned to UNIV OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION (1)· patent assignee history
2021Patents assigned to UNIV PITTSBURGH COMMONWEALTH SYS HIGHER EDUCATION (1)· patent assignee history
2021Based in Pittsburgh, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
STAUFFER CHEMICAL CO51976–1980
UNIV OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION12021
UNIV PITTSBURGH COMMONWEALTH SYS HIGHER EDUCATION12021
Locations
LocationPatentsSpan
El Cerrito, California, US51976–1980
Pittsburgh, Pennsylvania, US22021