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Patent Assignment Assignor Details
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Assignor Name : CHANG, ZEN-YU
Total Assignments: 10
Assignment: 1
Reel/Frame:007801/0438   Pages: 2
Recorded: 11/08/1995
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BEREZNAK, JAMES FRANCIS
Exec Dt:
06/30/1994
2
CHANG, ZEN-YU
Exec Dt:
06/30/1994
3
SELBY, THOMAS PAUL
Exec Dt:
06/30/1994
4
STERNBERG, CHARLENE GROSS
Exec Dt:
06/30/1994
Assignee
1
E. I. DU PONT DE NEMOURS AND COMPANY
LEGAL - PATENTS
1007 MARKET STREET
WILMINGTON, DELAWARE 19898
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5747497
NONE
08545827
Correspondence name and address
E. I. DU PONT DE NEMOURS COMPANY
NANCY S. MAYER
LEGAL - PATENTS
1007 MARKET STREET
WILMINGTON, DE 19898
Assignment: 2
Reel/Frame:009090/0535   Pages: 2
Recorded: 01/02/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BEREZNAK, JAMES FRANCIS
Exec Dt:
07/12/1996
2
CHANG, ZEN-YU
Exec Dt:
07/12/1996
3
STERNBERG, CHARLENE GROSS
Exec Dt:
07/12/1996
Assignee
1
E.I. DU PONT DE NEMOURS AND COMPANY
LEGAL - PATENTS
1007 MARKET STREET
WILMINGTON, DELAWARE 19898
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6066638
NONE
08983086
Correspondence name and address
E.I. DU PONT DE NEMOURS COMPANY
DAVID E. HEISER
LEGAL - PATENTS
1007 MARKET STREET
WILMINGTON, DE 19898
Assignment: 3
Reel/Frame:013261/0276   Pages: 5
Recorded: 09/03/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CROSS, COLLIN W.
Exec Dt:
07/15/2002
2
CHANG, ZEN-YU
Exec Dt:
07/10/2002
3
PRUETT, S. BLAKE
Exec Dt:
07/15/2002
4
GOLIASZEWSKI, ALAN E.
Exec Dt:
07/16/2002
Assignee
1
BETZDEARBORN, INC.
4636 SOMERTON ROAD
TREVOSE, PENNSYLVANIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6872230
US20040010963
10197307
Correspondence name and address
HOFFMANN & BARON, LLP
DANIEL A. SCOLA, JR.
6900 JERICHO TURNPIKE
SYOSSET, NY 11791
Assignment: 4
Reel/Frame:013706/0786   Pages: 3
Recorded: 01/29/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHANG, ZEN-YU
Exec Dt:
10/10/2002
2
MINEVSKI, LILIANA
Exec Dt:
11/15/2002
3
LUE, PING
Exec Dt:
10/10/2002
Assignee
1
GE BETZ, INC.
4636 SOMERTON ROAD
P.O. BOX 3002
TREVOSE, PENNSYLVANIA 19053-6783
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6974553
US20040076542
10272128
Correspondence name and address
DUANE MORRIS LLP
RICHARD A. PAIKOFF
ONE LIBERTY PLACE
1650 MARKET STREET
PHILADELPHIA, PA 19103-7396
Assignment: 5
Reel/Frame:022551/0263   Pages: 5
Recorded: 04/16/2009
Attorney Dkt #:225843
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LINK, JOHN
Exec Dt:
04/08/2009
2
CHANG, ZEN-YU
Exec Dt:
04/09/2009
Assignee
1
GENERAL ELECTRIC COMPANY
1 RIVER ROAD
SCHENECTADY, NEW YORK 12345
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8518238
US20100258480
12421181
Correspondence name and address
GENERAL ELECTRIC COMPANY GPO
PO BOX 861
2 CORPORATE DRIVE, SUITE 648
SHELTON, CT 06484
Assignment: 6
Reel/Frame:029923/0445   Pages: 5
Recorded: 03/05/2013
Attorney Dkt #:3786-01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHANG, ZEN-YU
Exec Dt:
02/07/2013
2
ROBERTS, CHARLES D.
Exec Dt:
02/06/2013
Assignee
1
THE LUBRIZOL CORPORATION
29400 LAKELAND BLVD.
LEGAL DEPARTMENT, MD022B
WICKLIFFE, OHIO 44092-2298
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20130137608
13701572
Correspondence name and address
CATHY BARTEL, THE LUBRIZOL CORPORATION
29400 LAKELAND BLVD.
LEGAL DEPARTMENT, MD022B
WICKLIFFE, OH 44092-2298
Assignment: 7
Reel/Frame:032009/0915   Pages: 6
Recorded: 01/21/2014
Attorney Dkt #:3858-01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHANG, ZEN-YU
Exec Dt:
01/13/2014
2
ROBERTS, C. DAVID
Exec Dt:
01/09/2014
Assignee
1
THE LUBRIZOL CORPORATION
29400 LAKELAND BLVD.
WICKLIFFE, OHIO 44092-2298
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140163270
14233395
Correspondence name and address
CATHY BARTEL, THE LUBRIZOL CORP.
29400 LAKELAND BLVD.
MAIL DROP 022B
WICKLIFFE, OH 44092-2298
Assignment: 8
Reel/Frame:036427/0800   Pages: 6
Recorded: 08/26/2015
Attorney Dkt #:3996-01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BARTLEY, STUART L.
Exec Dt:
08/14/2015
2
JACKSON, MITCHELL M.
Exec Dt:
08/17/2015
3
CHANG, ZEN-YU
Exec Dt:
08/14/2015
4
ARTERS, DAVID C.
Exec Dt:
08/14/2015
5
FRANK, ANTHONY R.
Exec Dt:
08/14/2015
Assignee
1
THE LUBRIZOL CORPORATION
29400 LAKELAND BLVD.
WICKLIFFE, OHIO 44092-2298
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9873847
US20160032208
14770173
Correspondence name and address
CATHY BARTEL, THE LUBRIZOL CORPORATION
29400 LAKELAND BLVD.
LEGAL DEPT, MAIL DROP 022B
WICKLIFFE, OH 44092-2298
Assignment: 9
Reel/Frame:047682/0552   Pages: 4
Recorded: 12/05/2018
Attorney Dkt #:4463
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHANG, ZEN-YU
Exec Dt:
05/02/2017
2
MASTRANGELO, ANTONIO
Exec Dt:
04/20/2017
Assignee
1
LUBRIZOL OILFIELD SOLUTIONS, INC.
29400 LAKELAND BLVD.
WICKLIFFE, OHIO 44092-2298
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10745634
US20190136146
16307355
Correspondence name and address
THE LUBRIZOL CORPORATION
29400 LAKELAND BLVD.
WICKLIFFE, OH 44092-2298
Assignment: 10
Reel/Frame:043834/0144   Pages: 4
Recorded: 10/11/2017
Attorney Dkt #:4232
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
METTATH, SASHIKUMAR
Exec Dt:
10/10/2017
2
CHANG, ZEN-YU
Exec Dt:
10/07/2017
Assignee
1
THE LUBRIZOL CORPORATION
29400 LAKELAND BLVD.
WICKLIFFE, OHIO 44092-2298
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20180072937
15564465
Correspondence name and address
DAWN A. BROWN
THE LUBRIZOL CORPORATION
29400 LAKELAND BLVD.
WICKLIFFE, OH 44092-2298

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