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Patent Assignment Assignor Details
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Assignor Name : SENGUPTA, AMITAVA
Total Assignments: 22
Assignment: 1
Reel/Frame:004412/0687   Pages: 1
Recorded: 05/31/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
SENGUPTA, AMITAVA
Exec Dt:
05/24/1985
Assignee
1
WACKER CORPORATION
A CORP OF WISCONSIN
MILWAUKEE, NOT PROVIDED
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4629359
NONE
06739691
Correspondence name and address
JAMES E. NILLES
FIRST WISCONSIN CENTER, SUITE 3070
777 EAST WISCONSIN AVE.
MILWAUKEE, WI 53202
Assignment: 2
Reel/Frame:007318/0126   Pages: 6
Recorded: 02/02/1995
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SIRKAR, KAMALESH K.
Exec Dt:
12/20/1994
2
YANG, DALI
Exec Dt:
12/23/1994
3
MAJUMDAR, SUDIPTO
Exec Dt:
12/20/1994
4
KOVENKLIOGLU, SUPHAN
Exec Dt:
12/22/1994
5
SENGUPTA, AMITAVA
Exec Dt:
01/04/1995
Assignee
1
NEW JERSEY INSTITUTE OF TECHNOLOGY
323 DR. MARTIN LUTHER KING, JR. BLVD.
NEWARK, NEW JERSEY 07102
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5637224
NONE
08305873
Correspondence name and address
DAVID A. JACKSON
KLAUBER & JACKSON
4TH FLOOR
411 HACKENSACK AVENUE
HACKENSACK, NJ 07601
Assignment: 3
Reel/Frame:010867/0242   Pages: 3
Recorded: 06/02/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SENGUPTA, AMITAVA
Exec Dt:
06/01/2000
Assignee
1
CELGARD INC.
13800 SOUTH LAKES DRIVE
CHARLOTTE, NORTH CAROLINA 28273
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6402818
NONE
09586369
Correspondence name and address
CELGARD INC.
ATTN: ROBERT H. HAMMER III
LAW DEPARTMENT
13800 SOUTH LAKES DRIVE
CHARLOTTE, NC 28273
Assignment: 4
Reel/Frame:011957/0354   Pages: 4
Recorded: 07/02/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SENGUPTA, AMITAVA
Exec Dt:
04/27/2001
2
HUNTSBERGER, DANIEL S.
Exec Dt:
04/27/2001
3
MILLER, BRIAN D.
Exec Dt:
04/27/2001
Assignee
1
CELGARD INC.
13800 SOUTH LAKES DRIVE
CHARLOTTE, NORTH CAROLINA 28273
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6558450
US20020134235
09816730
Correspondence name and address
ROBERT H. HAMMER III, P.C.
ROBERT H. HAMMER III
13777 BALLANTYNE CORPORATE PLACE
SUITE 250
CHARLOTTE, NC 28277
Assignment: 5
Reel/Frame:012097/0275   Pages: 3
Recorded: 08/20/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RUNKLE, CHARLES J.
Exec Dt:
07/18/2001
2
SENGUPTA, AMITAVA
Exec Dt:
07/18/2001
3
VIDO, TONY R.
Exec Dt:
07/18/2001
Assignee
1
CELGARD INC.
13800 SOUTH LAKES DRIVE
CHARLOTTE, NORTH CAROLINA 28273
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20020168491
09851242
Correspondence name and address
ROBERT H. HAMMER III, P.C.
ROBERT H. HAMMER III
13777 BALLANTYNE CORPORATE PLACE
SUITE 250
CHARLOTTE NC 28277
Assignment: 6
Reel/Frame:012237/0964   Pages: 3
Recorded: 10/05/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHO, KWANTAI
Exec Dt:
08/28/2001
2
DELOZIER, CLIFTON J.
Exec Dt:
08/27/2001
3
HOLSTEIN, LINUS I.
Exec Dt:
08/28/2001
4
PITTMAN, R. ALLEN
Exec Dt:
08/27/2001
5
RUNKLE, CHARLES J.
Exec Dt:
08/27/2001
6
SENGUPTA, AMITAVA
Exec Dt:
08/27/2001
Assignee
1
CELGARD INC.
13800 SOUTH LAKES DRIVE
CHARLOTTE, NORTH CAROLINA 28273
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6616841
US20020195385
09886653
Correspondence name and address
ROBERT H. HAMMER III, P.C.
13777 BALLANTYNE CORPORATE PLACE
SUITE 250
CHARLOTTE, NC 28277
Assignment: 7
Reel/Frame:015584/0799   Pages: 3
Recorded: 07/21/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SENGUPTA, AMITAVA
Exec Dt:
07/12/2004
2
HOLSTEIN, LINUS I.
Exec Dt:
07/12/2004
3
BOULDIN, E. WAYNE
Exec Dt:
07/13/2004
Assignee
1
CELGARD, INC.
13800 SOUTH LAKES DRIVE
CHARLOTTE, NORTH CAROLINA 28273
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7638049
US20050218064
10812450
Correspondence name and address
ROBERT H. HAMMER III, P.C.
3121 SPRINGBANK LANE
SUITE I
CHARLOTTE, NC 28226
Assignment: 8
Reel/Frame:015590/0056   Pages: 3
Recorded: 07/21/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SENGUPTA, AMITAVA
Exec Dt:
07/12/2004
2
HOLSTEIN, LINUS I.
Exec Dt:
07/12/2004
3
BOULDIN, JR., E. WAYNE
Exec Dt:
07/13/2004
Assignee
1
CELGARD INC.
13800 SOUTH LAKES DRIVE
CHARLOTTE, NORTH CAROLINA 28273
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
D538749
NONE
29203207
Correspondence name and address
ROBERT H. HAMMER III, P.C.
ROBERT H. HAMMER
3121 SPRINGBANK LANE, SUITE I
CHARLOTTE, NC 28226
Assignment: 9
Reel/Frame:016142/0533   Pages: 4
Recorded: 01/10/2005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SENGUPTA, AMITAVA
Exec Dt:
11/16/2004
2
WIESE, FRANK
Exec Dt:
11/22/2004
Assignee
1
CELGARD LLC
13800 SOUTH LAKES DRIVE
CHARLOTTE, NORTH CAROLINA 28273
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20060081524
10966193
Correspondence name and address
ROBERT H. HAMMER III
ROBERT H. HAMMER III, P.C.
3121 SPRINGBANK LANE
SUITE I
CHARLOTTE, NC 28226
Assignment: 10
Reel/Frame:017335/0183   Pages: 3
Recorded: 03/13/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SENGUPTA, AMITAVA
Exec Dt:
02/17/2006
Assignee
1
GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE, THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY
100 BUREAU DRIVE MS2200
GAITHERSBURG, MARYLAND 20899-2200
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7075378
US20050007204
10885118
Correspondence name and address
NATL. INST. OF STANDS & TECH.
ATTENTION: BRENDA L. THOMASSON
MAIL STOP 2200
100 BUREAU DRIVE
GAITHERSBURG, MD 20899-2200
Assignment: 11
Reel/Frame:018401/0894   Pages: 3
Recorded: 10/17/2006
Attorney Dkt #:2000.180A-A
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SENGUPTA, AMITAVA
Exec Dt:
10/03/2006
2
HOLSTEIN, LINUS I.
Exec Dt:
10/09/2006
3
BOULDIN, E. WAYNE, JR.
Exec Dt:
10/03/2006
Assignee
1
CELGARD LLC
13800 SOUTH LAKES DRIVE
CHARLOTTE, NORTH CAROLINA 28273
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
D546768
NONE
29249675
Correspondence name and address
ROBERT H. HAMMER III
3125 SPRINGBANK LANE, SUITE G
CHARLOTTE, NC 28226
Assignment: 12
Reel/Frame:018401/0925   Pages: 3
Recorded: 10/17/2006
Attorney Dkt #:2000.180A-B
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SENGUPTA, AMITAVA
Exec Dt:
10/03/2006
2
HOLSTEIN, LINUS I.
Exec Dt:
10/09/2006
3
BOULDIN, E. WAYNE, JR.
Exec Dt:
10/03/2006
Assignee
1
CELGARD LLC
13800 SOUTH LAKES DRIVE
CHARLOTTE, NORTH CAROLINA 28273
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
D546769
NONE
29249676
Correspondence name and address
ROBERT H. HAMMER III
3125 SPRINGBANK LANE, SUITE G
CHARLOTTE, NC 28226
Assignment: 13
Reel/Frame:020877/0520   Pages: 8
Recorded: 04/30/2008
Attorney Dkt #:2000.237
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TAYLOR, GARETH PETER
Exec Dt:
03/20/2008
2
SENGUPTA, AMITAVA
Exec Dt:
03/20/2008
3
PRICE, TIMOTHY D.
Exec Dt:
04/01/2008
4
HOLSTEIN, LINUS I.
Exec Dt:
03/20/2008
5
VIDO, TONY R.
Exec Dt:
03/20/2008
Assignee
1
CELGARD LLC
13800 SOUTH LAKES DRIVE
CHARLOTTE, NORTH CAROLINA 28273
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7803274
US20090272684
12112071
Correspondence name and address
HAMMER & HANF, PC
3125 SPRINGBANK LANE
SUITE G
CHARLOTTE, NC 28226
Assignment: 14
Reel/Frame:022774/0799   Pages: 3
Recorded: 06/03/2009
Attorney Dkt #:2000.233
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TAYLOR, GARETH P.
Exec Dt:
05/29/2009
2
SENGUPTA, AMITAVA
Exec Dt:
05/29/2009
Assignee
1
CELGARD LLC
13800 SOUTH LAKES DRIVE
CHARLOTTE, NORTH CAROLINA 28273
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8158001
US20090301967
12477340
Correspondence name and address
HAMMER & ASSOCIATES, P.C.
3125 SPRINGBANK LANE
SUITE G
CHARLOTTE, NC 28226
Assignment: 15
Reel/Frame:024878/0771   Pages: 3
Recorded: 08/24/2010
Attorney Dkt #:2000.266
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TAYLOR, GARETH P.
Exec Dt:
08/18/2010
2
SENGUPTA, AMITAVA
Exec Dt:
08/18/2010
Assignee
1
CELGARD LLC
13800 SOUTH LAKES DRIVE
CHARLOTTE, NORTH CAROLINA 28273
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8506685
US20110036240
12857199
Correspondence name and address
HAMMER & ASSOCIATES, P.C.
3125 SPRINGBANK LANE
SUITE G
CHARLOTTE, NC 28226
Assignment: 16
Reel/Frame:028438/0118   Pages: 3
Recorded: 06/25/2012
Attorney Dkt #:2000.285
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TAYLOR, GARETH P.
Exec Dt:
06/18/2012
2
PRICE, TIMOTHY D.
Exec Dt:
06/18/2012
3
SENGUPTA, AMITAVA
Exec Dt:
06/18/2012
4
PETERSON, PAUL A.
Exec Dt:
06/18/2012
5
WENSLEY, C. GLEN
Exec Dt:
06/19/2012
Assignee
1
CELGARD LLC
13800 SOUTH LAKES DRIVE
CHARLOTTE, NORTH CAROLINA 28273
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9541302
US20120304862
13485966
Correspondence name and address
HAMMER & ASSOCIATES, P.C.
3125 SPRINGBANK LANE
SUITE G
CHARLOTTE, NC 28226
Assignment: 17
Reel/Frame:032537/0160   Pages: 3
Recorded: 03/27/2014
Attorney Dkt #:2000.311
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TAYLOR, GARETH P.
Exec Dt:
03/24/2014
2
SENGUPTA, AMITAVA
Exec Dt:
03/24/2014
Assignee
1
CELGARD, LLC
13800 SOUTH LAKES DRIVE
CHARLOTTE, NORTH CAROLINA 28273
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140263061
14210660
Correspondence name and address
HAMMER & ASSOCIATES, P.C.
3125 SPRINGBANK LANE
SUITE G
CHARLOTTE, NC 28226
Assignment: 18
Reel/Frame:033755/0926   Pages: 3
Recorded: 09/17/2014
Attorney Dkt #:2000.266-6
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TAYLOR, GARETH P.
Exec Dt:
09/15/2014
2
SENGUPTA, AMITAVA
Exec Dt:
09/15/2014
Assignee
1
CELGARD, LLC
13800 SOUTH LAKES DRIVE
CHARLOTTE, NORTH CAROLINA 28273
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8876945
US20120137879
13389604
Correspondence name and address
HAMMER & ASSOCIATES, P.C.
3125 SPRINGBANK LANE, SUITE G
CHARLOTTE, NC 28226
Assignment: 19
Reel/Frame:033950/0566   Pages: 3
Recorded: 10/15/2014
Attorney Dkt #:2000.349
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PETERSON, PAUL A.
Exec Dt:
10/09/2014
2
SENGUPTA, AMITAVA
Exec Dt:
10/09/2014
3
WIESLER, FREDERICK E.
Exec Dt:
10/09/2014
Assignee
1
CELGARD, LLC
13800 SOUTH LAKES DRIVE
CHARLOTTE, NORTH CAROLINA 28273
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20160096745
14507899
Correspondence name and address
HAMMER & ASSOCIATES, P.C.
3125 SPRINGBANK LANE
SUITE G
CHARLOTTE, NC 28226
Assignment: 20
Reel/Frame:045858/0040   Pages: 4
Recorded: 05/21/2018
Attorney Dkt #:77297US004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SENGUPTA, AMITAVA
Exec Dt:
02/22/2018
2
SCHUCHMANN, CHAD E.
Exec Dt:
04/15/2018
3
TAYLOR, GARETH P.
Exec Dt:
02/22/2018
Assignee
1
3M INNOVATIVE PROPERTIES COMPANY
PO BOX 33427
ST. PAUL, MINNESOTA 55133-3427
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20180243699
15754315
Correspondence name and address
3M INNOVATIVE PROPERTIES COMPANY
PO BOX 33427
ST. PAUL, MN 55133-3427
Assignment: 21
Reel/Frame:061646/0382   Pages: 13
Recorded: 11/03/2022
Attorney Dkt #:PA83068US05
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KOLAKALURI, RAVI
Exec Dt:
03/31/2022
2
SAVVATEEV, VADIM N.
Exec Dt:
04/01/2022
3
TAYLOR, GARETH P.
Exec Dt:
04/01/2022
4
LE BLANC, SHANNON S.
Exec Dt:
03/31/2022
5
ZHENG, DIAN
Exec Dt:
03/31/2022
6
BADRI, BRINDA B.
Exec Dt:
04/03/2022
7
NIELSEN, PAUL A.
Exec Dt:
04/02/2022
8
SENGUPTA, AMITAVA
Exec Dt:
03/31/2022
9
FLOM, MICHAEL C.
Exec Dt:
04/13/2022
10
PRICE, TIMOTHY D.
Exec Dt:
03/31/2022
11
LEATHERDALE, CATHERINE A.
Exec Dt:
03/31/2022
Assignee
1
3M INNOVATIVE PROPERTIES COMPANY
P.O. BOX 33427
ST. PAUL, MINNESOTA 55133-3427
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230338899
17923073
Correspondence name and address
3M INNOVATIVE PROPERTIES COMPANY
PO BOX 33427
ST. PAUL, 55133-3427 UNITED STATES
Assignment: 22
Reel/Frame:061760/0733   Pages: 14
Recorded: 11/14/2022
Attorney Dkt #:PA83069US05
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TAYLOR, GARETH P.
Exec Dt:
04/01/2022
2
PRICE, TIMOTHY D.
Exec Dt:
03/31/2022
3
BAUM, SCOTT A.
Exec Dt:
04/01/2022
4
KOLAKALURI, RAVI
Exec Dt:
04/03/2022
5
SAVVATEEV, VADIM N.
Exec Dt:
04/01/2022
6
LE BLANC, SHANNON S.
Exec Dt:
03/31/2022
7
ZHENG, DIAN
Exec Dt:
03/31/2022
8
BADRI, BRINDA B.
Exec Dt:
04/03/2022
9
NIELSEN, PAUL A.
Exec Dt:
04/02/2022
10
SENGUPTA, AMITAVA
Exec Dt:
03/31/2022
11
FLOM, MICHAEL C.
Exec Dt:
04/13/2022
12
LEATHERDALE, CATHERINE A.
Exec Dt:
03/31/2022
Assignee
1
3M INNOVATIVE PROPERTIES COMPANY
P.O. BOX 33427
SAINT PAUL, MINNESOTA 55133-3427
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230182081
17925110
Correspondence name and address
3M INNOVATIVE PROPERTIES COMPANY
P.O. BOX 33427
SAINT PAUL, MN 55133-3427

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