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Inventor

Dale Caldwell

Inventor
Skokie, IL, US

Overview

5→
Patents
1977–2012
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 5 as inventor

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

G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties21%
Y10TTechnical subjects covered by former us classification21%
B26DCutting14%
B26FPerforating14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
G04BMechanically-driven clocks or watches7%
LOCD17%
PatentTitleYear
8,163,153'Tool for extracting electrophoretic sample'20127,413,908'Gel extraction device'20087,247,275'Gel extraction device'20075,030,104'Time telling learning device'1991D0244931'Motion picture camera'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Based in Evanston, IL, US· patent location history
1991–2012Patents assigned to CALDWELL DALE R (3)· patent assignee history
1991–2012Based in Skokie, IL, US· patent location history
2007–2012Patents assigned to CLOUSER JR LEON C (2)· patent assignee history
2008Patents assigned to CALDWELL DALE (1)· patent assignee history
2008Patents assigned to CALDWELL JEREMY (1)· patent assignee history
2012Patents assigned to CALDWELL JEREMY S (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CALDWELL DALE Rself31991–2012
CLOUSER JR LEON C22007–2012
CALDWELL DALEself12008
CALDWELL JEREMY12008
CALDWELL JEREMY S12012
Locations
LocationPatentsSpan
Skokie, Illinois, US41991–2012
Evanston, Illinois, US11977