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Patent Assignment Assignor Details
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Assignor Name : LETZELTER, FREDERIC
Total Assignments: 21
Assignment: 1
Reel/Frame:011761/0638   Pages: 3
Recorded: 06/18/2001
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE NAME OF THE ASSIGNOR, FILED 3/26/01, RECORDED ON REEL 011657 FRAME 0185. ASSIGNOR HEREBY CONFIRMS THE (ASSIGNMENT OF ASSIGNOR'S INTEREST)
Assignors
1
LETZELTER, FREDERIC
Exec Dt:
03/12/2001
2
MELOCCO, FRANCOIS
Exec Dt:
03/19/2001
Assignee
1
DASSAULT SYSTEMES
9, QUAI MARCEL DASSAULT
BP310, 92156 SURESNES CEDEX, FRANCE
Property
 
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6717597
US20020075328
09738146
Correspondence name and address
CLIFFORD CHANCE ROGERS ET AL
MITCHELL S. FELLER
200 PARK AVENUE
NEW YORK, NY 10166
Assignment: 2
Reel/Frame:028330/0970   Pages: 3
Recorded: 06/06/2012
Attorney Dkt #:4201.1057-000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
LETZELTER, FREDERIC
Exec Dt:
05/22/2012
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
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9235656
US20120280983
13456999
Correspondence name and address
MARY LOU WAKIMURA, ESQ.
HAMILTON, BROOK, SMITH & REYNOLDS, P.C.
530 VIRGINIA ROAD, P.O. BOX 9133
CONCORD, MA 01742-9133
Assignment: 3
Reel/Frame:028331/0041   Pages: 3
Recorded: 06/06/2012
Attorney Dkt #:4201.1054-000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
LETZELTER, FREDERIC
Exec Dt:
05/22/2012
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9245060
US20120280981
13455821
Correspondence name and address
MARY LOU WAKIMURA, ESQ.
530 VIRGINIA ROAD, P.O. BOX 9133
HAMILTON BROOK SMITH REYNOLDS P.C.
CONCORD, MA 01742-9133
Assignment: 4
Reel/Frame:028331/0286   Pages: 3
Recorded: 06/06/2012
Attorney Dkt #:4201.1056-000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
LETZELTER, FREDERIC
Exec Dt:
05/22/2012
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8878841
US20120280982
13455883
Correspondence name and address
MARY LOU WAKIMURA
530 VIRGINIA ROAD, P.O. BOX 9133
CONCORD, MA 01742-9133
Assignment: 5
Reel/Frame:028331/0417   Pages: 3
Recorded: 06/06/2012
Attorney Dkt #:4201.1055-000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
LETZELTER, FREDERIC
Exec Dt:
05/22/2012
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8941681
US20120283998
13455827
Correspondence name and address
MARY LOU WAKIMURA
530 VIRGINIA ROAD, P.O. BOX 9133
CONCORD, MA 01742-9133
Assignment: 6
Reel/Frame:028360/0175   Pages: 8
Recorded: 06/12/2012
Attorney Dkt #:4201.1058-000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LETZELTER, FREDERIC
Exec Dt:
05/22/2012
2
LUHRS, RAINER
Exec Dt:
05/22/2012
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9111053
US20120280984
13457017
Correspondence name and address
MARY LOU WAKIMURA, ESQ.
530 VIRGINIA ROAD, P.O. BOX 9133
HAMILTON, BROOK, SMITH & REYNOLDS, P.C.
CONCORD, MA 01742-9133
Assignment: 7
Reel/Frame:028362/0156   Pages: 4
Recorded: 06/12/2012
Attorney Dkt #:4201.1060-000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LETZELTER, FREDERIC
Exec Dt:
05/22/2012
2
GUNTHER, MATHIEU
Exec Dt:
05/22/2012
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9336335
US20120290958
13460434
Correspondence name and address
MARY LOU WAKIMURA, ESQ.
530 VIRGINIA ROAD, P.O. BOX 9133
HAMILTON BROOK SMITH REYNOLDS P.C.
CONCORD, MA 01742-9133
Assignment: 8
Reel/Frame:028362/0438   Pages: 7
Recorded: 06/12/2012
Attorney Dkt #:4201.1061-000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HONG, JEAN
Exec Dt:
05/23/2012
2
QUERIC, MIKAEL
Exec Dt:
05/25/2012
3
DEREL, JEROME
Exec Dt:
05/22/2012
4
LETZELTER, FREDERIC
Exec Dt:
05/22/2012
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10108750
US20120287121
13461428
Correspondence name and address
MARY LOU WAKIMURA, ESQ.
530 VIRGINIA ROAD, P.O. BOX 9133
HAMILTON BROOK SMITH REYNOLDS P.C.
CONCORD, MA 01742-9133
Assignment: 9
Reel/Frame:034568/0037   Pages: 4
Recorded: 12/22/2014
Attorney Dkt #:4201.1111-000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LETZELTER, FREDERIC
Exec Dt:
12/17/2014
2
GUNTHER, MATHIEU
Exec Dt:
12/17/2014
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9772770
US20150177854
14562553
Correspondence name and address
MARY LOU WAKIMURA, ESQ.
530 VIRGINIA ROAD, P.O. BOX 9133
HAMILTON, BROOK, SMITH & REYNOLDS, P.C.
CONCORD, MA 01742-9133
Assignment: 10
Reel/Frame:035139/0137   Pages: 7
Recorded: 03/11/2015
Attorney Dkt #:4201.1114-000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LETZELTER, FREDERIC
Exec Dt:
02/02/2015
2
PEYTHIEUX, LAURA
Exec Dt:
02/02/2015
3
GUNTHER, MATHIEU
Exec Dt:
02/02/2015
4
RENARD, AMELIE
Exec Dt:
02/02/2015
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9472024
US20150178991
14569509
Correspondence name and address
MARY LOU WAKIMURA, ESQ.
530 VIRGINIA ROAD, P.O. BOX 9133
HAMILTON, BROOK, SMITH & REYNOLDS, P.C.
CONCORD, MA 01742-9133
Assignment: 11
Reel/Frame:035868/0492   Pages: 8
Recorded: 06/09/2015
Attorney Dkt #:4201.1119-000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HONG, JEAN
Exec Dt:
05/29/2015
2
KOHLER, MANFRED
Exec Dt:
04/13/2015
3
PEYTHIEUX, LAURA
Exec Dt:
05/18/2015
4
BOYER, CHRISTOPHE
Exec Dt:
04/13/2015
5
LETZELTER, FREDERIC
Exec Dt:
05/14/2015
6
BERAUD, ROBERT
Exec Dt:
04/13/2015
7
GUNTHER, MATHIEU
Exec Dt:
05/12/2015
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10825242
US20150243075
14629936
Correspondence name and address
MARY LOU WAKIMURA, ESQ.
530 VIRGINIA ROAD, P.O. BOX 9133
HAMILTON, BROOK, SMITH & REYNOLDS, P.C.
CONCORD, MA 01742-9133
Assignment: 12
Reel/Frame:038135/0896   Pages: 4
Recorded: 03/30/2016
Attorney Dkt #:464478US41
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RENARD, AMELIE
Exec Dt:
03/01/2016
2
PEYTHIEUX, LAURA
Exec Dt:
03/01/2016
3
LETZELTER, FREDERIC
Exec Dt:
03/17/2016
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10761684
US20160188133
14982905
Correspondence name and address
OBLON, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 13
Reel/Frame:038324/0971   Pages: 4
Recorded: 04/20/2016
Attorney Dkt #:464480US41
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RENARD, AMELIE
Exec Dt:
03/01/2016
2
PEYTHIEUX, LAURA
Exec Dt:
03/01/2016
3
LETZELTER, FREDERIC
Exec Dt:
03/17/2016
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10761705
US20160188192
14982984
Correspondence name and address
OBLON, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 14
Reel/Frame:038483/0478   Pages: 4
Recorded: 05/06/2016
Attorney Dkt #:464477US41
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RENARD, AMELIE
Exec Dt:
03/01/2016
2
PEYTHIEUX, LAURA
Exec Dt:
03/01/2016
3
LETZELTER, FREDERIC
Exec Dt:
03/17/2016
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10775984
US20160188191
14982866
Correspondence name and address
OBLON, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 15
Reel/Frame:039002/0412   Pages: 4
Recorded: 06/24/2016
Attorney Dkt #:463109US41
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LETZELTER, FREDERIC
Exec Dt:
03/17/2016
2
RENARD, AMELIE
Exec Dt:
03/01/2016
3
PEYTHIEUX, LAURA
Exec Dt:
03/01/2016
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9875555
US20160140723
14945055
Correspondence name and address
OBLON, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 16
Reel/Frame:039755/0196   Pages: 4
Recorded: 09/15/2016
Attorney Dkt #:4201.1125-001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LETZELTER, FREDERIC
Exec Dt:
09/11/2016
2
CHAUVET, JEAN-MARC
Exec Dt:
09/09/2016
3
DUFAU, CHRISTOPHE
Exec Dt:
09/09/2016
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10289771
US20170177770
15238066
Correspondence name and address
MARY LOU WAKIMURA
530 VIRGINIA ROAD, P.O. BOX 9133
HAMILTON, BROOK, SMITH & REYNOLDS, P.C.
CONCORD, MA 01742-9133
Assignment: 17
Reel/Frame:039756/0630   Pages: 4
Recorded: 09/15/2016
Attorney Dkt #:4201.1126-001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LETZELTER, FREDERIC
Exec Dt:
09/11/2016
2
CHAUVET, JEAN-MARC
Exec Dt:
09/09/2016
3
DUFAU, CHRISTOPHE
Exec Dt:
09/09/2016
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10311182
US20170177771
15238227
Correspondence name and address
MARY LOU WAKIMURA
530 VIRGINIA ROAD, P.O. BOX 9133
HAMILTON, BROOK, SMITH & REYNOLDS, P.C.
CONCORD, MA 01742-9133
Assignment: 18
Reel/Frame:048242/0175   Pages: 3
Recorded: 02/05/2019
Attorney Dkt #:4201.1160-000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LETZELTER, FREDERIC
Exec Dt:
01/27/2019
2
RENARD, AMELIE
Exec Dt:
01/27/2019
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10769824
US20190206098
16225180
Correspondence name and address
MARY LOU WAKIMURA
HAMILTON, BROOK, SMITH & REYNOLDS, P.C.
530 VIRGINIA ROAD, P.O. BOX 9133
CONCORD, MA 01742-9133
Assignment: 19
Reel/Frame:048241/0545   Pages: 3
Recorded: 02/05/2019
Attorney Dkt #:4201.1159-000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PEYTHIEUX, LAURA
Exec Dt:
02/04/2019
2
LETZELTER, FREDERIC
Exec Dt:
02/04/2019
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11385783
US20190196699
16222530
Correspondence name and address
MARY LOU WAKIMURA
HAMILTON, BROOK, SMITH & REYNOLDS, P.C.
530 VIRGINIA ROAD, P.O. BOX 9133
CONCORD, MA 01742-9133
Assignment: 20
Reel/Frame:053950/0890   Pages: 3
Recorded: 10/01/2020
Attorney Dkt #:527648US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SADOUDI, YANI
Exec Dt:
07/24/2020
2
LETZELTER, FREDERIC
Exec Dt:
07/27/2020
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY-VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11604902
US20200210632
16730876
Correspondence name and address
OBLON, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 21
Reel/Frame:054670/0648   Pages: 3
Recorded: 12/16/2020
Attorney Dkt #:527652US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LETZELTER, FREDERIC
Exec Dt:
07/27/2020
2
SADOUDI, YANI
Exec Dt:
07/24/2020
Assignee
1
DASSAULT SYSTEMES
10 RUE MARCEL DASSAULT
VELIZY-VILLACOUBLAY, FRANCE 78140
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20200211296
16730849
Correspondence name and address
OBLON, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314

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