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Patent Assignment Assignor Details
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Assignor Name : KEFFERSTEIN, RONALD
Total Assignments: 13
Assignment: 1
Reel/Frame:009552/0938   Pages: 2
Recorded: 10/27/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MORAND, CLAUDE
Exec Dt:
08/12/1998
2
KEFFERSTEIN, RONALD
Exec Dt:
08/12/1998
Assignee
1
SOLLAC
VALMY
IMMEUBLE "LA PACIFIC" LA DEFENSE 7-11/13 COURS
92800 PUTEAUX, FRANCE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6063447
NONE
09129761
Correspondence name and address
OBLON SPIVAK MCCLELLAND MAIER & NEUSTADT
JEAN-PAUL LAVALLEYE
1755 JEFFERSON DAVIS HIGHWAY, 4TH FLOOR
ARLINGTON, VA 22202
Assignment: 2
Reel/Frame:010754/0474   Pages: 2
Recorded: 04/19/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHERER, LOTHAIRE
Exec Dt:
01/20/2000
2
KEFFERSTEIN, RONALD
Exec Dt:
01/20/2000
3
ANTOINE, PHILIPPE
Exec Dt:
01/20/2000
Assignee
1
SOLLAC
IMMEUBLE "LA PACIFIC" - 11/13 COURS VALMY-LA DEFENSE 7
92800 PUTEAUX, FRANCE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6309697
NONE
09446887
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER ET AL
JEAN-PAUL LAVALLEYE
FOURTH FLOOR
1755 JEFFERSON DAVIS HIGHWAY
ARLINGTON, VA 22202
Assignment: 3
Reel/Frame:011311/0199   Pages: 2
Recorded: 11/29/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KEFFERSTEIN, RONALD
Exec Dt:
08/29/2000
2
SCHERER, LOTHAIRE
Exec Dt:
08/29/2000
Assignee
1
USINOR
IMMEUBLE LA PACIFIC - LA DEFENSE 7, 11-13 COURS VALMY
PUTEAUX, FRANCE 92800
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6447590
NONE
09645445
Correspondence name and address
YOUNG & THOMPSON
ROBERT J. PATCH
745 SOUTH 23RD STREET, SUITE 200
ARLINGTON, VIRGINIA 22202
Assignment: 4
Reel/Frame:011849/0757   Pages: 2
Recorded: 05/30/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KEFFERSTEIN, RONALD
Exec Dt:
04/24/2001
2
JARTOUX, XAVIER
Exec Dt:
04/24/2001
Assignee
1
USINOR
IMMEUBLE "LA PACIFIC" LA DEFENSE 7-11/13 COURS VALMY
92800-PUTEAUX, FRANCE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6564604
US20010042393
09827167
Correspondence name and address
SUGHRUE, MION, ZINN, MACPEAK & SEAS PLLC
RICHARD C. TURNER
2100 PENNSYLVANIA AVENUE, N.W.
SUITE 800
WASHINGTON, D.C. 20037-3213
Assignment: 5
Reel/Frame:025049/0213   Pages: 8
Recorded: 09/28/2010
Attorney Dkt #:357147US0CONT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPEHNER, DOMINIQUE
Exec Dt:
07/21/2010
2
KEFFERSTEIN, RONALD
Exec Dt:
09/15/2010
3
DRILLET, PASCAL
Exec Dt:
08/23/2010
Assignee
1
ARCELORMITTAL FRANCE
1 A 5, RUE LUIGI CHERUBINI
SAINT DENIS, FRANCE F-93200
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8733142
US20110006491
12834162
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 6
Reel/Frame:048670/0013   Pages: 8
Recorded: 03/22/2019
Attorney Dkt #:206311067,704.1019CONCON2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPEHNER, DOMINIQUE
Exec Dt:
07/21/2010
2
KEFFERSTEIN, RONALD
Exec Dt:
09/15/2010
3
DRILLET, PASCAL
Exec Dt:
08/23/2010
Assignee
1
ARCELORMITTAL FRANCE
1 A 5, RUE LUIGI CHERUBINI
SAINT DENIS, FRANCE 93200
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
8066829
US20110214475
13118077
 
8440323
US20120064362
13301403
Correspondence name and address
DAVIDSON DAVIDSON & KAPPEL LLC
589 AVE, 16TH FLOOR
NEW YORK, NY 10018
Assignment: 7
Reel/Frame:026004/0196   Pages: 7
Recorded: 03/23/2011
Attorney Dkt #:341082US0PCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DRILLET, PASCAL
Exec Dt:
04/28/2009
2
SPEHNER, DOMINIQUE
Exec Dt:
04/24/2009
3
KEFFERSTEIN, RONALD
Exec Dt:
03/15/2011
Assignee
1
ARCELORMITTAL FRANCE
1-5 RUE LUIGI CHERUBINI
SAINT DENIS, FRANCE 93200
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8307680
US20110165436
12447777
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 8
Reel/Frame:042677/0694   Pages: 8
Recorded: 06/12/2017
Attorney Dkt #:631.1028DIV
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DRILLET, PASCAL
Exec Dt:
04/28/2009
2
SPEHNER, DOMINIQUE
Exec Dt:
04/24/2009
3
KEFFERSTEIN, RONALD
Exec Dt:
03/15/2011
Assignee
1
ARCELORMITTAL FRANCE
1 - 5 RUE LUIGI CHERUBINI
SAINT DENIS, FRANCE 93200
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9708683
US20130029172
13621015
Correspondence name and address
DAVIDSON, DAVIDSON & KAPPEL, LLC
589 EIGHTH AVE, 16TH FLOOR
NEW YORK, 10018 UNITED STATES
Assignment: 9
Reel/Frame:046472/0748   Pages: 3
Recorded: 07/26/2018
Attorney Dkt #:20631.1028CON
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DRILLET, PASCAL
Exec Dt:
06/29/2017
2
KEFFERSTEIN, RONALD
Exec Dt:
07/01/2017
Assignee
1
ARCELORMITTAL
24-26 BOULEVARD D'AVRANCHES
LUXEMBOURG, LUXEMBOURG L-1160
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10550447
US20170260603
15606770
Correspondence name and address
DAVIDSON, DAVIDSON & KAPPEL, LLC
589 8TH AVENUE, 16TH FLOOR
NEW YORK, NY 10018
Assignment: 10
Reel/Frame:051164/0159   Pages: 4
Recorded: 12/03/2019
Attorney Dkt #:20631.1028CON2-6
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DRILLET, PASCAL
Exec Dt:
06/29/2017
2
KEFFERSTEIN, RONALD
Exec Dt:
07/01/2017
Assignee
1
ARCELORMITTAL
24-26 BLVD D'AVRANCHES
LUXEMBOURG, LUXEMBOURG 1160
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
10577674
US20190276912
16413729
 
10590507
US20190271055
16413774
 
10961602
US20190271056
16413799
 
11041226
US20190271057
16413825
 
10597747
US20190271058
16414022
Correspondence name and address
DAVIDSON DAVIDSON & KAPPEL LLC
589 AVE, 16TH FLOOR
NEW YORK, NY 10018
Assignment: 11
Reel/Frame:056229/0348   Pages: 3
Recorded: 05/13/2021
Attorney Dkt #:20631.1028CON7
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KEFFERSTEIN, RONALD
Exec Dt:
07/01/2017
2
DRILLET, PASCAL
Exec Dt:
06/29/2017
Assignee
1
ARCELORMITTAL
24 - 26 BLVD D'AVRANCHES
LUXEMBOURG, LUXEMBOURG L-1160
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11326227
US20210262055
17319306
Correspondence name and address
DAVIDSON, DAVIDSON & KAPPEL, LLC
589 8TH AVENUE
22ND FLOOR
NEW YORK, NY 10018
Assignment: 12
Reel/Frame:057527/0749   Pages: 3
Recorded: 09/20/2021
Attorney Dkt #:20631.1028DIV8
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KEFFERSTEIN, RONALD
Exec Dt:
07/01/2017
2
DRILLET, PASCAL
Exec Dt:
06/29/2017
Assignee
1
ARCELORMITTAL
24 - 26 BLVD D'AVRANCHES
LUXEMBOURG, LUXEMBOURG L-1160
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11939643
US20220002834
17479050
Correspondence name and address
DAVIDSON, DAVIDSON & KAPPEL, LLC
589 EIGHTH AVE, 22ND FL
NEW YORK, NY 10018
Assignment: 13
Reel/Frame:065847/0223   Pages: 3
Recorded: 12/12/2023
Attorney Dkt #:20631.1028CON9
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KEFFERSTEIN, RONALD
Exec Dt:
07/01/2017
2
DRILLET, PASCAL
Exec Dt:
06/29/2017
Assignee
1
ARCELORMITTAL
24 - 26 BLVD D'AVRANCHES
LUXEMBOURG, LUXEMBOURG L-1160
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20240110256
18537158
Correspondence name and address
DAVIDSON, DAVIDSON & KAPPEL, LLC
589 EIGHTH AVE, 22ND FL
NEW YORK, NY 10018

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