Inventor

Robert J. Cooper

Inventor
West Dundee, IL, US

Overview

14→
Patents
1991–2013
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 14 as inventor

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

Y10Tprimary
Y10TTechnical subjects covered by former us classification25%
F16KValves21%
H02BBoards, substations or switching arrangements for the supply or distribution of electric power13%
B01DSeparation8%
A47BTables4%
A47CChairs4%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges4%
F16LPipes4%
F21SNon-portable lighting devices4%
F21VFunctional features or details of lighting devices or systems thereof4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1997Patents assigned to SQUARE D CO (5)· patent assignee history
1991–1997Based in Lexington, KY, US· patent location history
1992–1996Patents assigned to EATON CORP (4)· patent assignee history
1992–1999Based in West Dundee, IL, US· patent location history
1998Based in St. Kitt's/Nevis, KN· patent location history
2000Patents assigned to RANCO INC (1)· patent assignee history
2000Based in Fox Lake, IL, US· patent location history
2013Patents assigned to COOPER ROBERT JAMES (1)· patent assignee history
2013Based in Tewksbury, MA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SQUARE D CO51991–1997
EATON CORP41992–1996
COOPER ROBERT JAMESself12013
RANCO INC12000
Locations
LocationPatentsSpan
West Dundee, Illinois, US61992–1999
Lexington, KY, US51991–1997
Tewksbury, Massachusetts, US12013
Fox Lake, Illinois, US12000
St. Kitt's/Nevis, KN11998