Inventor

John C. Caldwell

Inventor
Pomona, CA, US

Overview

1→
Patents
1977
Patent span
Performing operations
Primary field (CPC B)

Patents· 1 as inventor

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

B01Dprimary
B01DSeparation20%
B01FMixing, e.g. dissolving, emulsifying or dispersing20%
G01NInvestigating or analysing materials by determining their chemical or physical properties20%
G05DSystems for controlling or regulating non-electric variables20%
Y10TTechnical subjects covered by former us classification20%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to UNION OIL CO (1)· patent assignee history
1977Based in Pomona, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UNION OIL CO11977
Locations
LocationPatentsSpan
Pomona, California, US11977