Inventor

Donald Hopkins

Inventor
Sacramento, CA, US

Overview

2→
Patents
1981–1993
Patent span
Performing operations
Primary field (CPC B)

Patents· 2 as inventor

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

B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry33%
C10GCracking hydrocarbon oils33%
H03FAmplifiers33%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to STANDARD OIL CO INDIANA (1)· patent assignee history
1981Based in St. Charles, IL, US· patent location history
1993Patents assigned to UNIV CALIFORNIA (1)· patent assignee history
1993Based in Sacramento, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
STANDARD OIL CO INDIANA11981
UNIV CALIFORNIA11993
Locations
LocationPatentsSpan
Sacramento, California, US11993
St. Charles, Illinois, US11981