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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 : DUFTLER, MATTHEW J.
Total Assignments: 21
Assignment: 1
Reel/Frame:009640/0227   Pages: 3
Recorded: 12/08/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WEERAWARANA, SANJIVA
Exec Dt:
12/07/1998
2
EPSTEIN, DAVID A.
Exec Dt:
12/07/1998
3
DUFTLER, MATTHEW J.
Exec Dt:
12/07/1998
4
CURBERA, FRANCISCO P.
Exec Dt:
12/07/1998
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20020104073
09207046
Correspondence name and address
WHITHAM, CURTIS & WHITHAM
C. LAMONT WHITHAM, ESQ.
RESTON INTERNATIONAL CENTER
11800 SUNRISE VALLEY DRIVE, SUITE 900
RESTON, VIRGINIA 20191
Assignment: 2
Reel/Frame:009974/0294   Pages: 3
Recorded: 05/17/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BOEHME, RICHARD F.
Exec Dt:
05/14/1999
2
DUFTLER, MATTHEW J.
Exec Dt:
05/14/1999
3
EPSTEIN, DAVID A.
Exec Dt:
05/14/1999
4
WEERAWARANA, SANJIVA
Exec Dt:
05/14/1999
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
OLD ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6578191
NONE
09312888
Correspondence name and address
WHITHAM, CURTIS & WHITHAM
GREGORY S. DISCHER
11800 SUNRISE VALLEY DRIVE - SUITE 900
RESTON, VA 20191
Assignment: 3
Reel/Frame:010339/0084   Pages: 4
Recorded: 10/20/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BOEHME, RICHARD A.
Exec Dt:
10/18/1999
2
DUFTLER, MATTHEW J.
Exec Dt:
10/15/1999
3
EPSTEIN, DAVID A.
Exec Dt:
10/13/1999
4
KESSELMAN, JOSEPH J.
Exec Dt:
10/07/1999
5
WEERAWARANA, SANJIVA
Exec Dt:
10/15/1999
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6578192
NONE
09421376
Correspondence name and address
WHITHAM, CURTIS & WHITHAM
GREGORY S. DISCHER, ESQ.
RESTON INTERNATIONAL CENTER
11800 SUNRISE VALLEY DRIVE, SUITE 900
RESTON, VA 20191
Assignment: 4
Reel/Frame:010337/0917   Pages: 3
Recorded: 10/22/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WEERAWARANA, SANJIVA
Exec Dt:
10/21/1999
2
DUFTLER, MATTHEW J.
Exec Dt:
10/21/1999
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6779172
NONE
09425726
Correspondence name and address
WHITHAM, CURTIS & WHITHAM
GREGORY S. DISCHER, ESQ.
11800 SUNRISE VALLEY DRIVE
SUITE 900
RESTON, VA 20191
Assignment: 5
Reel/Frame:011409/0149   Pages: 3
Recorded: 12/14/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUFTLER, MATTHEW J.
Exec Dt:
12/08/2000
2
WEERAWARANA, SANJIVA
Exec Dt:
12/08/2000
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20020133811
09735942
Correspondence name and address
MCGUIREWOODS LLP
C. LAMONT WHITHAM, ESQ.
1750 TYSONS BOULEVARD
SUITE 1800
MCLEAN, VA 22102
Assignment: 6
Reel/Frame:020691/0118   Pages: 17
Recorded: 03/24/2008
Attorney Dkt #:YOR920070695US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CURBERA, FRANCISCO PHELAN
Exec Dt:
02/13/2008
2
DUFTLER, MATTHEW J.
Exec Dt:
02/13/2008
3
FRAENKEL, MICHAEL LEVI
Exec Dt:
02/10/2008
4
KHALAF, RANIA Y.
Exec Dt:
02/12/2008
5
MARTENS, AXEL
Exec Dt:
02/14/2008
6
RIEMER, JOHANNES
Exec Dt:
02/14/2008
7
SHACHOR, GAL
Exec Dt:
03/18/2008
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8856809
US20090241128
12051629
Correspondence name and address
DUKE W. YEE
YEE & ASSOCIATES, P.C.
P.O. BOX 802333
DALLAS, TX 75380
Assignment: 7
Reel/Frame:062094/0670   Pages: 12
Recorded: 12/08/2022
Attorney Dkt #:YOR920100102US1
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE CONVEYING PARTY DATA OF INVENTORS MATTHEW J. DUFTLER AND RANIA Y. KHALAF WHO WERE INADVERTENTLY MISSING THEIR MIDDLE INITIALS PREVIOUSLY RECORDED AT REEL: 024592 FRAME: 0701. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Assignors
1
AUSTEL, PAULA K.
Exec Dt:
06/23/2010
2
CHARI, SURESH
Exec Dt:
06/23/2010
3
CURBERA, FRANCISCO
Exec Dt:
06/23/2010
4
DUFTLER, MATTHEW J.
Exec Dt:
06/23/2010
5
KHALAF, RANIA Y.
Exec Dt:
06/23/2010
6
ROSENBERG, FLORIAN F.
Exec Dt:
06/25/2010
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9189649
US20110321131
12823200
Correspondence name and address
IP LAW DEPT - IBM CORPORATION
1101 KITCHAWAN ROAD, ROUTE 134, P.O. BOX 218
IP LAW DEPARTMENT, T.J. WATSON RESEARCH CENTER
YORKTOWN, NY 10598
Assignment: 8
Reel/Frame:026181/0814   Pages: 8
Recorded: 04/26/2011
Attorney Dkt #:YOR920110066US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUFTLER, MATTHEW J.
Exec Dt:
04/20/2011
2
MIKALSEN, THOMAS A.
Exec Dt:
04/20/2011
3
MUNSON, JONATHAN P.
Exec Dt:
04/25/2011
4
SUBRAMANIAN, REVATHI
Exec Dt:
04/20/2011
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8867337
US20120278558
13094039
Correspondence name and address
MICHAEL J. COOPER
1300 POST ROAD, SUITE 205
RYAN, MASON & LEWIS, LLP
FAIRFIELD, CT 06824
Assignment: 9
Reel/Frame:028243/0311   Pages: 12
Recorded: 05/21/2012
Attorney Dkt #:YOR920120032US1(8728-996)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUFTLER, MATTHEW J.
Exec Dt:
05/16/2012
2
KEYSER, PAUL T.
Exec Dt:
05/15/2012
3
KHALAF, RAINA
Exec Dt:
05/15/2012
4
LAKSHMANAN, GEETIKA T.
Exec Dt:
05/15/2012
5
MARIN, MIKE A.
Exec Dt:
05/20/2012
6
MUKHI, NIRMAL K.
Exec Dt:
05/16/2012
7
ROZSNYAI, SZABOLCS
Exec Dt:
05/15/2012
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20130311242
13476739
Correspondence name and address
F. CHAU & ASSOCIATES, LLC FRANK CHAU
130 WOODBURY ROAD
WOODBURY, NY 11797
Assignment: 10
Reel/Frame:028931/0680   Pages: 4
Recorded: 09/11/2012
Attorney Dkt #:YOR920120036US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUFTLER, MATTHEW J.
Exec Dt:
08/21/2012
2
ROZSNYAI, SZABOLCS
Exec Dt:
08/21/2012
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8825581
US20140074764
13608813
Correspondence name and address
INTERNATIONAL BUSINESS MACHINES CORP.
294 ROUTE 100, PO BOX 100
SOMERS, NY 10589
Assignment: 11
Reel/Frame:028932/0068   Pages: 4
Recorded: 09/11/2012
Attorney Dkt #:YOR920120036US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUFTLER, MATTHEW J.
Exec Dt:
08/21/2012
2
ROZSNYAI, SZABOLCS
Exec Dt:
08/21/2012
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8825581
US20140074764
13608813
Correspondence name and address
INTERNATIONAL BUSINESS MACHINES CORP.
294 ROUTE 100, PO BOX 100
SOMERS, NY 10589
Assignment: 12
Reel/Frame:030141/0262   Pages: 7
Recorded: 04/03/2013
Attorney Dkt #:YOR920130157US1 (163-650)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUFTLER, MATTHEW J.
Exec Dt:
03/26/2013
2
HU, JIANYING
Exec Dt:
04/02/2013
3
LAKSHMANAN, GEETIKA T.
Exec Dt:
03/26/2013
4
ROZSNYAI, SZABOLES
Exec Dt:
03/26/2013
5
WANG, FEI
Exec Dt:
03/26/2013
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9430616
US20140297240
13851755
Correspondence name and address
TUTUNJIAN & BITETTO, P.C.
425 BROADHOLLOW ROAD, SUITE 302
MELVILLE, NY 11747
Assignment: 13
Reel/Frame:031174/0926   Pages: 7
Recorded: 09/10/2013
Attorney Dkt #:YOR920130157US2 (650 CON)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUFTLER, MATTHEW J.
Exec Dt:
03/26/2013
2
HU, JIANYING
Exec Dt:
04/02/2013
3
LAKSHMANAN, GEETIKA T.
Exec Dt:
03/26/2013
4
ROZSNYAI, SZABOLCS
Exec Dt:
03/26/2013
5
WANG, FEI
Exec Dt:
03/26/2013
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140297324
14022667
Correspondence name and address
TUTUNJIAN & BITETTO, P.C.
425 BROADHOLLOW ROAD, SUITE 302
MELVILLE, NY 11747
Assignment: 14
Reel/Frame:039103/0584   Pages: 7
Recorded: 07/07/2016
Attorney Dkt #:YOR920130157US3(650CONII)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUFTLER, MATTHEW J.
Exec Dt:
03/26/2013
2
HU, JIANYING
Exec Dt:
04/02/2013
3
LAKSHMANAN, GEETIKA T.
Exec Dt:
03/26/2013
4
ROZSNYAI, SZABOLCS
Exec Dt:
03/26/2013
5
WANG, FEI
Exec Dt:
03/26/2013
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10181012
US20160321405
15204628
Correspondence name and address
TUTUNJIAN & BITETTO, P.C.
401 BROADHOLLOW ROAD, SUITE 402
MELVILLE, NY 11747
Assignment: 15
Reel/Frame:047909/0391   Pages: 9
Recorded: 12/14/2018
Attorney Dkt #:YOR920130157US1
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE SPELLING OF CONVEYING PARTY DATA INVENTOR NAME (SZABOLCS ROZSNYAI) PREVIOUSLY RECORDED ON REEL 030141 FRAME 0262. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Assignors
1
DUFTLER, MATTHEW J.
Exec Dt:
03/26/2013
2
HU, JIANYING
Exec Dt:
04/02/2013
3
LAKSHMANAN, GEETIKA T.
Exec Dt:
03/26/2013
4
ROZSNYAI, SZABOLCS
Exec Dt:
03/26/2013
5
WANG, FEI
Exec Dt:
03/26/2013
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9430616
US20140297240
13851755
Correspondence name and address
IBM CORPORATION
1101 KITCHAWAN ROAD, ROUTE 134, P.O. BOX 218
IBM CORPORATION IP LAW DEPARTMENT, T.J. WATSON RES
YORKTOWN, NY 10598
Assignment: 16
Reel/Frame:030097/0802   Pages: 4
Recorded: 03/27/2013
Attorney Dkt #:YOR920130156US1 (163-649)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUFTLER, MATTHEW J.
Exec Dt:
03/27/2013
2
KEYSER, PAUL T.
Exec Dt:
03/27/2013
3
ROZSNYAI, SZABOLCS
Exec Dt:
03/27/2013
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10365945
US20140298341
13851618
Correspondence name and address
TUTUNJIAN & BITETTO, P.C.
425 BROADHOLLOW ROAD, SUITE 302
MELVILLE, NY 11747
Assignment: 17
Reel/Frame:031234/0528   Pages: 5
Recorded: 09/18/2013
Attorney Dkt #:YOR920130156US2 (649 CON)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUFTLER, MATTHEW J.
Exec Dt:
03/27/2013
2
KEYSER, PAUL T.
Exec Dt:
03/27/2013
3
ROZSNYAI, SZABOLCS
Exec Dt:
03/27/2013
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10365946
US20140297640
14030652
Correspondence name and address
TUTUNJIAN & BITETTO, P.C.
425 BROADHOLLOW ROAD, SUITE 302
MELVILLE, NY 11747
Assignment: 18
Reel/Frame:030570/0963   Pages: 8
Recorded: 06/07/2013
Attorney Dkt #:YOR.893
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DEMUTH, STEPHEN JOSEPH
Exec Dt:
05/30/2013
2
DUFTLER, MATTHEW J.
Exec Dt:
05/30/2013
3
KHALAF, RANIA YOUSEF
Exec Dt:
05/28/2013
4
LAKSHMANAN, GEETIKA TEWARI
Exec Dt:
05/28/2013
5
ROZSNYAI, SZABOLCS
Exec Dt:
05/30/2013
6
UNUVAR, MERVE
Exec Dt:
05/23/2013
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140365403
13912275
Correspondence name and address
MCGINN IP LAW GROUP, PLLC
8321 OLD COURTHOUSE ROAD
SUITE 200
VIENNA, VA 22182-3817
Assignment: 19
Reel/Frame:031012/0956   Pages: 8
Recorded: 08/13/2013
Attorney Dkt #:YOR.893
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE FIRST INVENTOR'S NAME PREVIOUSLY RECORDED ON REEL 030570 FRAME 0963. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT OF ASSIGNOR INTEREST.
Assignors
1
DEMUTH, STEVEN JOSEPH
Exec Dt:
05/30/2013
2
DUFTLER, MATTHEW J.
Exec Dt:
05/30/2013
3
KHALAF, RANIA YOUSEF
Exec Dt:
05/28/2013
4
LAKSHMANAN, GEETIKA TEWARI
Exec Dt:
05/28/2013
5
ROZSNYAI, SZABOLCS
Exec Dt:
05/30/2013
6
UNUVAR, MERVE
Exec Dt:
05/23/2013
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140365403
13912275
Correspondence name and address
MCGINN IP LAW GROUP, PLLC
8321 OLD COURTHOUSE RD.
SUITE 200
VIENNA, VA 22182-3817
Assignment: 20
Reel/Frame:030860/0722   Pages: 7
Recorded: 07/23/2013
Attorney Dkt #:YOR920130381US1 (163-682)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUFTLER, MATTHEW J.
Exec Dt:
07/22/2013
2
OMOKPO, AMOS A.
Exec Dt:
07/19/2013
3
REMBERT, AUBREY J.
Exec Dt:
07/22/2013
4
ROZSNYAI, SZABOLCS
Exec Dt:
07/22/2013
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20150032499
13948954
Correspondence name and address
TUTUNJIAN & BITETTO, P.C.
425 BROADHOLLOW ROAD, SUITE 302
MELVILLE, NY 11747
Assignment: 21
Reel/Frame:032476/0445   Pages: 11
Recorded: 03/19/2014
Attorney Dkt #:YOR920130906US2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CURBERA, FRANCISCO
Exec Dt:
11/01/2013
2
DUFTLER, MATTHEW J.
Exec Dt:
11/01/2013
3
LAKSHMANAN, GEETIKA T.
Exec Dt:
10/31/2013
4
MUKHI, NIRMAL K.
Exec Dt:
11/01/2013
5
ROZSNYAI, SZABOLCS
Exec Dt:
03/13/2014
6
SLOMINSKI, ALEKSANDER A.
Exec Dt:
10/31/2013
Assignee
1
INTERNATIONAL BUSINESS MACHINES CORPORATION
NEW ORCHARD ROAD
ARMONK, NEW YORK 10504
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20150128034
14219593
Correspondence name and address
F. CHAU & ASSOCIATES, LLC FRANK CHAU
130 WOODBURY ROAD
WOODBURY, NY 11797

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