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Patent Assignment Assignor Details
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Assignor Name : COSPER, DAVID R.
Total Assignments: 10
Assignment: 1
Reel/Frame:003931/0413   Pages: 1
Recorded: 09/08/1981
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
HYDE, JAMES A.
Exec Dt:
09/02/1981
2
BRESLIN, MICHAEL D.
Exec Dt:
09/02/1981
3
COSPER, DAVID R.
Exec Dt:
09/02/1981
4
KAPLAN, ROY I.
Exec Dt:
09/02/1981
Assignee
1
NALCO CHEMICAL COMPANY, A CORP OF DE.
OAK BROOK, ILLINOIS
Property
 
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4383889
NONE
06300110
Correspondence name and address
JOHN I. NOREK
69 WEST WASHINGTON ST.,
CHICAGO, ILL. 60602
Assignment: 2
Reel/Frame:003931/0524   Pages: 1
Recorded: 10/05/1981
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
COSPER, DAVID R.
Exec Dt:
10/30/1981
2
LINDENBERGER, WILLIAM H.
Exec Dt:
10/30/1981
Assignee
1
NALCO CHEMICAL COMPANY, A CORP.OF DE.
OAK BROOK, ILLINOIS
Property
 
Pat #
Pub #
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4378235
NONE
06308051
Correspondence name and address
JOHN G. PREMO
NALCO CHEMICAL CO.
2901 BUTTERFIELD RD.
OAK BROOK, IL 60521
Assignment: 3
Reel/Frame:004218/0513   Pages: 1
Recorded: 02/08/1984
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
COSPER, DAVID R.
Exec Dt:
06/14/1982
2
MC KAY, GRETCHEN L.
Exec Dt:
06/14/1982
Assignee
1
NALCO CHEMICAL COMPANY
A CORP. OF DE
OAK BROOK, ILLINOIS
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4444573
NONE
06390294
Correspondence name and address
MR. JOHN G. PREMO
NALCO CHEMICAL COMPANY
2901 BUTTERFIELD ROAD
OAK BROOK, ILLINOIS 60521
Assignment: 4
Reel/Frame:004399/0783   Pages: 1
Recorded: 05/15/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
COSPER, DAVID R.
Exec Dt:
10/05/1984
2
MCKAY, GRETCHEN L.
Exec Dt:
10/30/1984
Assignee
1
NALCO CHEMICAL COMPANY, A DE CORP
OAK BROOK, ILLINOIS 60521
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4554026
NONE
06670800
Correspondence name and address
JOHN G. PREMO
PATENT & LICENSING DEPT.
NALCO CHEMICAL CO.
2901 BUTTERFIELD RD.
OAK BROOK, IL 60521
Assignment: 5
Reel/Frame:004754/0976   Pages: 1
Recorded: 08/07/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
COSPER, DAVID R.
Exec Dt:
07/20/1987
Assignee
1
NALCO CHEMICAL COMPANY
A CORP. OF DE
NAPERVILLE, ILLINOIS
Property
 
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Pub #
Intl #
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4734258
NONE
07082877
Correspondence name and address
JOHN G. PREMO
NALCO CHEMICAL COMPANY
ONE NALCO CENTER
NAPERVILLE, IL 60566-1024
Assignment: 6
Reel/Frame:005895/0192   Pages: 3
Recorded: 10/28/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
SARKAR, JAWED M.
Exec Dt:
10/03/1991
2
COSPER, DAVID R.
Exec Dt:
10/02/1991
Assignee
1
NALCO CHEMICAL COMPANY, A CORP. OF DE
ONE NALCO CENTER NAPERVILLE, IL 60563-1198
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5169497
NONE
07772726
Correspondence name and address
ROBERT A. MILLER
NALCO CHEMICAL CO.
PATENT & LICENSING DEPT.
ONE NALCO CENTER
NAPERVILLE, IL 60563-1198
Assignment: 7
Reel/Frame:006268/0676   Pages: 3
Recorded: 09/28/1992
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
COSPER, DAVID R.
Exec Dt:
07/13/1992
2
KNELLER, JAMES F.
Exec Dt:
07/10/1992
Assignee
1
NALCO CHEMICAL COMPANY
ONE NALCO CENTER NAPERVILLE, ILLINOIS 60563-1198
NAPERVILLE, ILLINOIS, ILLINOIS
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5266243
NONE
07914806
Correspondence name and address
DRESSLER, GOLDSMITH, SHORE
SUTKER & MILNAMOW, LTD.
TWO PRUDENTIAL PLAZA - SUITE 4700
180 NORTH STETSON AVENUE
CHICAGO, IL 60601
Assignment: 8
Reel/Frame:006613/0324   Pages: 3
Recorded: 07/02/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
COSPER, DAVID R.
Exec Dt:
06/24/1993
2
TUBERGEN, KAREN R.
Exec Dt:
06/24/1993
Assignee
1
NALCO CHEMICAL COMPANY
ONE NALCO CENTER
NAPERVILLE, ILLINOIS 60563-1198
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5405495
NONE
08087172
Correspondence name and address
PAUL D. GREELEY, ESQ.
AILES, OHLANDT & GREELEY
SIX LANDMARK SQUARE
STAMFORD, CT 06901
Assignment: 9
Reel/Frame:006910/0350   Pages: 3
Recorded: 03/07/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SARKAR, JAWED M.
Exec Dt:
03/04/1994
2
COSPER, DAVID R.
Exec Dt:
03/04/1994
Assignee
1
NALCO CHEMICAL COMPANY
ONE NALCO CENTER
NAPERVILLE, ILLINOIS 60563-1198
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5423946
NONE
08206364
Correspondence name and address
NALCO CHEMICAL COMPANY
JAMES J. DRAKE
PATENT & LICENSING DEPT.
ONE NALCO CENTER
NAPERVILLE, IL 60563-1198
Assignment: 10
Reel/Frame:007084/0434   Pages: 3
Recorded: 08/08/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
COSPER, DAVID R.
Exec Dt:
07/27/1994
2
TUBERGEN, KAREN R.
Exec Dt:
07/27/1994
Assignee
1
NALCO CHEMICAL COMPANY
ONE NALCO CENTER
NAPERVILLE, ILLINOIS 60563-1198
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5441601
NONE
08286235
Correspondence name and address
JAMES J. DRAKE
PATENT & LICENSING DEPT.
NALCO CHEMICAL COMPANY
ONE NALCO CENTER
NAPERVILLE, IL. 60563-1198

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