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Patent Assignment Assignor Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Assignor Name : CHI, CHANGZAI
Total Assignments: 15
Assignment: 1
Reel/Frame:018153/0860   Pages: 3
Recorded: 08/22/2006
Attorney Dkt #:CL3002USNA
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHI, CHANGZAI
Exec Dt:
07/05/2006
2
MIKESKA, KURT RICHARD
Exec Dt:
07/13/2006
3
GREEN, DANIEL ALBERT
Exec Dt:
07/05/2006
4
SILVERMAN, LEE A.
Exec Dt:
07/20/2006
Assignee
1
E. I. DU PONT DE NEMOURS AND COMPANY
1007 MARKET STREET
LEGAL-PATENTS
WILMINGTON, DELAWARE 19898
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8858833
US20070108413
11443911
Correspondence name and address
LOIS A. SANTOPIETRO
4417 LANCASTER PIKE
LEGAL-PATENTS
WILMINGTON, DE 19805
Assignment: 2
Reel/Frame:018159/0261   Pages: 3
Recorded: 08/23/2006
Attorney Dkt #:CL3047USNA
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHI, CHANGZAI
Exec Dt:
07/12/2006
2
MIKESKA, KURT RICHARD
Exec Dt:
07/13/2006
3
GREEN, DANIEL ALBERT
Exec Dt:
07/12/2006
Assignee
1
E. I. DU PONT DE NEMOURS AND COMPANY
1007 MARKET STREET
LEGAL-PATENTS
WILMINGTON, DELAWARE 19898
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20060273285
11445528
Correspondence name and address
LOIS A. SANTOPIETRO
4417 LANCASTER PIKE
LEGAL-PATENTS
WILMINGTON, DE 19805
Assignment: 3
Reel/Frame:018159/0664   Pages: 2
Recorded: 08/23/2006
Attorney Dkt #:CL2558USNA
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
CHI, CHANGZAI
Exec Dt:
08/17/2006
Assignee
1
E. I. DU PONT DE NEMOURS AND COMPANY
1007 MARKET STREET
LEGAL-PATENTS
WILMINGTON, DELAWARE 19898
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20070022839
11489122
Correspondence name and address
LOIS A. SANTOPIETRO
4417 LANCASTER PIKE
LEGAL-PATENTS
WILMINGTON, DE 19805
Assignment: 4
Reel/Frame:019634/0259   Pages: 3
Recorded: 08/02/2007
Attorney Dkt #:CL2983USNA
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHI, CHANGZAI
Exec Dt:
07/19/2007
2
MIKESKA, KURT RICHARD
Exec Dt:
07/13/2007
3
CRAWFORD, MICHAEL KARL
Exec Dt:
07/03/2007
Assignee
1
E. I. DU PONT DE NEMOURS AND COMPANY
1007 MARKET STREET
LEGAL-PATENTS
WILMINGTON, DELAWARE 19898
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7625503
US20080025896
11749771
Correspondence name and address
LOIS A. SANTOPIETRO
4417 LANCASTER PIKE
LEGAL-PATENTS
WILMINGTON, DE 19805
Assignment: 5
Reel/Frame:023262/0516   Pages: 3
Recorded: 09/22/2009
Attorney Dkt #:CL3047USCIP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHI, CHANGZAI
Exec Dt:
09/04/2009
2
GREEN, DANIEL ALBERT
Exec Dt:
09/08/2009
3
MIKESKA, KURT RICHARD
Exec Dt:
09/09/2009
4
BEKIARIAN, PAUL GREGORY
Exec Dt:
09/09/2009
Assignee
1
E. I. DU PONT DE NEMOURS AND COMPANY
4417 LANCASTER PIKE
BARLEY MILL PLAZA 25
WILMINGTON, DELAWARE 19809
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20100012898
12534267
Correspondence name and address
LOIS A. SANTOPIETRO
4417 LANCASTER PIKE
BARLEY MILL PLAZA 25
WILMINGTON, DE 19809
Assignment: 6
Reel/Frame:023262/0526   Pages: 3
Recorded: 09/22/2009
Attorney Dkt #:CL3047USCIP1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHI, CHANGZAI
Exec Dt:
09/04/2009
2
GREEN, DANIEL ALBERT
Exec Dt:
09/08/2009
3
MIKESKA, KURT RICHARD
Exec Dt:
09/09/2009
4
BEKIARIAN, PAUL GREGORY
Exec Dt:
09/09/2009
Assignee
1
E. I. DU PONT DE NEMOURS AND COMPANY
4417 LANCASTER PIKE
BARLEY MILL PLAZA 25
WILMINGTON, DELAWARE 19809
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20100019200
12534276
Correspondence name and address
LOIS A. SANTOPIETRO
4417 LANCASTER PIKE
BARLEY MILL PLAZA 25
WILMINGTON, DE 19809
Assignment: 7
Reel/Frame:025205/0361   Pages: 3
Recorded: 10/27/2010
Attorney Dkt #:CL4310USNA
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHI, CHANGZAI
Exec Dt:
09/07/2010
2
MAHAJAN, SURBHI
Exec Dt:
09/09/2010
3
COHEN, GORDON MARK
Exec Dt:
09/07/2010
4
RAGHAVANPILLAI, ANILKUMAR
Exec Dt:
09/10/2010
Assignee
1
E. I. DU PONT DE NEMOURS AND COMPANY
4417 LANCASTER PIKE
BARLEY MILL PLAZA 25
WILMINGTON, DELAWARE 19809
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8450513
US20120029221
12846913
Correspondence name and address
LOIS A. SANTOPIETRO
4417 LANCASTER PIKE
BARLEY MILL PLAZA 25
WILMINGTON, DE 19809
Assignment: 8
Reel/Frame:025205/0410   Pages: 3
Recorded: 10/27/2010
Attorney Dkt #:CL5126USNA
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHI, CHANGZAI
Exec Dt:
09/07/2010
2
MAHAJAN, SURBHI
Exec Dt:
09/09/2010
3
COHEN, GORDON MARK
Exec Dt:
09/07/2010
4
RAGHAVANPILLAI, ANILKUMAR
Exec Dt:
09/10/2010
Assignee
1
E. I. DU PONT DE NEMOURS AND COMPANY
4417 LANCASTER PIKE
BARLEY MILL PLAZA 25
WILMINGTON, DELAWARE 19809
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20120029222
12846922
Correspondence name and address
LOIS A. SANTOPIETRO
4417 LANCASTER PIKE
BARLEY MILL PLAZA 25
WILMINGTON, DE 19809
Assignment: 9
Reel/Frame:025205/0437   Pages: 3
Recorded: 10/27/2010
Attorney Dkt #:CL5127USNA
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHI, CHANGZAI
Exec Dt:
09/07/2010
2
MAHAJAN, SURBHI
Exec Dt:
09/09/2010
3
COHEN, GORDON MARK
Exec Dt:
09/07/2010
4
RAGHAVANPILLAI, ANILKUMAR
Exec Dt:
09/10/2010
Assignee
1
E. I. DU PONT DE NEMOURS AND COMPANY
4417 LANCASTER PIKE
BARLEY MILL PLAZA 25
WILMINGTON, DELAWARE 19809
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8383716
US20120029148
12846926
Correspondence name and address
LOIS A. SANTOPIETRO
4417 LANCASTER PIKE
BARLEY MILL PLAZA 25
WILMINGTON, DE 19809
Assignment: 10
Reel/Frame:030680/0150   Pages: 4
Recorded: 06/25/2013
Attorney Dkt #:CL5518USNP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHI, CHANGZAI
Exec Dt:
06/18/2013
2
METH, JEFFREY SCOTT
Exec Dt:
06/18/2013
Assignee
1
E. I. DU PONT DE NEMOURS AND COMPANY
4417 LANCASTER PIKE
BARLEY MILL PLAZA 25
WILMINGTON, DELAWARE 19809
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140336295
13890318
Correspondence name and address
GORDON FISH
4417 LANCASTER PIKE
BARLEY MILL PLAZA 25
WILMINGTON, DE 19809
Assignment: 11
Reel/Frame:031230/0743   Pages: 5
Recorded: 09/18/2013
Attorney Dkt #:CL4554USPCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BEKIARIAN, PAUL GREGORY
Exec Dt:
08/29/2013
2
CHI, CHANGZAI
Exec Dt:
08/28/2013
3
COHEN, GORDON MARK
Exec Dt:
08/29/2013
Assignee
1
E. I. DU PONT DE NEMOURS AND COMPANY
974 CENTRE ROAD
CRP 721
WILMINGTON, DELAWARE 19805
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20130344338
14004695
Correspondence name and address
LOIS A. SANTOPIETRO
974 CENTRE ROAD
CRP 721
WILMINGTON, DE 19805
Assignment: 12
Reel/Frame:059461/0085   Pages: 14
Recorded: 03/31/2022
Attorney Dkt #:DI83427-US-NP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHI, CHANGZAI
Exec Dt:
08/13/2021
2
TETTEY, KWADWO
Exec Dt:
08/12/2021
3
VANHANEHEM, MATTHEW RICHARD
Exec Dt:
08/13/2021
4
THEIVANAYAGAM, MURALI GANTH
Exec Dt:
08/17/2021
5
ZHANG, LI
Exec Dt:
08/16/2021
6
MOSLEY, DAVID WAYNE
Exec Dt:
08/23/2021
Assignee
1
ROHM AND HAAS ELECTRONIC MATERIALS CMP HOLDINGS, INC.
451 BELLEVUE ROAD
NEWARK, DELAWARE 19713
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220348790
17697709
Correspondence name and address
DUPONT SPECIALTY PRODUCTS USA, LLC
974 CENTRE ROAD
WILMINGTON, DE 19805
Assignment: 13
Reel/Frame:059461/0344   Pages: 8
Recorded: 03/31/2022
Attorney Dkt #:DI83476-US-NP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHI, CHANGZAI
Exec Dt:
08/13/2021
2
THEIVANAYAGAM, MURALI GANTH
Exec Dt:
08/17/2021
3
TETTEY, KWADWO
Exec Dt:
08/12/2021
Assignee
1
ROHM AND HAAS ELECTRONIC MATERIALS CMP HOLDINGS, INC.
451 BELLEVUE ROAD
NEWARK, DELAWARE 19713
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220356065
17697735
Correspondence name and address
DUPONT SPECIALTY PRODUCTS USA, LLC
974 CENTRE ROAD
WILMINGTON, DE 19805
Assignment: 14
Reel/Frame:059461/0447   Pages: 3
Recorded: 03/31/2022
Attorney Dkt #:DI83370-US-NP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
CHI, CHANGZAI
Exec Dt:
08/13/2021
Assignee
1
ROHM AND HAAS ELECTRONIC MATERIALS CMP HOLDINGS, INC.
451 BELLEVUE ROAD
NEWARK, DELAWARE 19713
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220348789
17697647
Correspondence name and address
DUPONT SPECIALTY PRODUCTS USA, LLC
974 CENTRE ROAD
WILMINGTON, DE 19805
Assignment: 15
Reel/Frame:065313/0169   Pages: 3
Recorded: 10/23/2023
Attorney Dkt #:IJ0417-US-NP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
CHI, CHANGZAI
Exec Dt:
10/12/2023
Assignee
1
ROHM AND HAAS ELECTRONIC MATERIALS CMP HOLDINGS INC.
451 BELLEVUE ROAD
NEWARK, DELAWARE 19713
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20240124731
18468927
Correspondence name and address
DUPONT SPECIALTY PRODUCTS USA, LLC
974 CENTRE ROAD
WILMINGTON, DE 19805

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