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Patent Assignment Assignor Details
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Assignor Name : DOUCHI, SADAO
Total Assignments: 7
Assignment: 1
Reel/Frame:046509/0583   Pages: 4
Recorded: 07/31/2018
Attorney Dkt #:008810.00006\US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SUGINO, MASAAKI
Exec Dt:
04/17/2018
2
DOUCHI, SADAO
Exec Dt:
04/20/2018
3
YAMAMOTO, YASUHIRO
Exec Dt:
04/20/2018
Assignees
1
NIPPON STEEL & SUMITOMO METAL CORPORATION
6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU
TOKYO, JAPAN 100-8071
2
VALLOUREC OIL AND GAS FRANCE
54 RUE ANATOLE FRANCE
AULNOYE-AYMERIES, FRANCE 59620
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10883319
US20180313168
15768379
Correspondence name and address
BANNER & WITCOFF, LTD.
28 STATE STREET
SUITE 1800
BOSTON, MA 02109
Assignment: 2
Reel/Frame:046510/0141   Pages: 4
Recorded: 07/31/2018
Attorney Dkt #:008810.00007\US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
INOSE, KEITA
Exec Dt:
04/18/2018
2
SUGINO, MASAAKI
Exec Dt:
04/18/2018
3
DOUCHI, SADAO
Exec Dt:
04/23/2018
Assignees
1
NIPPON STEEL & SUMITOMO METAL CORPORATION
6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU
TOKYO, JAPAN 100-8071
2
VALLOUREC OIL AND GAS FRANCE
54 RUE ANATOLE FRANCE
AULNOYE-AYMERIES, FRANCE 59620
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10495241
US20180363813
16060770
Correspondence name and address
BANNER & WITCOFF, LTD.
28 STATE STREET
SUITE 1800
BOSTON, MA 02109
Assignment: 3
Reel/Frame:046820/0013   Pages: 4
Recorded: 09/07/2018
Attorney Dkt #:008810.00009\US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SUGINO, MASAAKI
Exec Dt:
08/06/2018
2
DOUCHI, SADAO
Exec Dt:
08/08/2018
3
YAMAMOTO, YASUHIRO
Exec Dt:
08/08/2018
Assignees
1
NIPPON STEEL & SUMITOMO METAL CORPORATION
6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU
TOKYO, JAPAN 100-8071
2
VALLOUREC OIL AND GAS FRANCE
54 RUE ANATOLE FRANCE
AULNOYE-AYMERIES, FRANCE 59620
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20190093799
16083129
Correspondence name and address
BANNER & WITCOFF, LTD.
28 STATE STREET
SUITE 1800
BOSTON, MA 02109
Assignment: 4
Reel/Frame:050474/0518   Pages: 6
Recorded: 09/24/2019
Attorney Dkt #:522642US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MENCAGLIA, XAVIER
Exec Dt:
05/21/2019
2
DUFRENE, COREY
Exec Dt:
05/06/2019
3
DOUCHI, SADAO
Exec Dt:
05/13/2019
4
SUGINO, MASAAKI
Exec Dt:
05/17/2019
Assignees
1
VALLOUREC OIL AND GAS FRANCE
54, RUE ANATOLE FRANCE
AULNOYE-AYMERIES, FRANCE F-59620
2
NIPPON STEEL CORPORATION
6-1, MARUNOUCHI 2-CHOME
CHIYODA-KU, TOKYO, JAPAN 100-8071
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11473373
US20200102797
16469287
Correspondence name and address
OBLON, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 5
Reel/Frame:054594/0823   Pages: 4
Recorded: 12/09/2020
Attorney Dkt #:6356.143957
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
OKU, YOUSUKE
Exec Dt:
11/27/2020
2
DOUCHI, SADAO
Exec Dt:
11/30/2020
Assignees
1
NIPPON STEEL CORPORATION
6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU,
TOKYO, JAPAN 100-8071
2
VALLOUREC OIL AND GAS FRANCE
54 RUE ANATOLE FRANCE
AULNOYE-AYMERIES, FRANCE 59620
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11391097
US20210246737
16973619
Correspondence name and address
GREER BURNS & CRAIN LTD.
300 S. WACKER DRIVE, SUITE 2500
SUITE 2500
CHICAGO, IL 60606
Assignment: 6
Reel/Frame:055748/0533   Pages: 5
Recorded: 03/29/2021
Attorney Dkt #:6356.145237
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
OKU, YOUSUKE
Exec Dt:
03/15/2021
2
DOUCHI, SADAO
Exec Dt:
03/22/2021
Assignees
1
NIPPON STEEL CORPORATION
6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU,
TOKYO, JAPAN 100-8071
2
VALLOUREC OIL AND GAS FRANCE
54 RUE ANATOLE FRANCE
AULNOYE-AYMERIES, FRANCE 59620
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20210341085
17280958
Correspondence name and address
GREER BURNS & CRAIN LTD.
300 S. WACKER DRIVE, SUITE 2500
SUITE 2500
CHICAGO, IL 60606
Assignment: 7
Reel/Frame:058196/0978   Pages: 5
Recorded: 11/23/2021
Attorney Dkt #:6356.147491
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
OKU, YOUSUKE
Exec Dt:
11/12/2021
2
DOUCHI, SADAO
Exec Dt:
11/16/2021
Assignees
1
NIPPON STEEL CORPORATION
6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU,
TOKYO, JAPAN 100-8071
2
VALLOUREC OIL AND GAS FRANCE
54 RUE ANATOLE FRANCE
AULNOYE-AYMERIES, FRANCE 59620
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11719365
US20220252188
17595734
Correspondence name and address
GREER BURNS & CRAIN LTD.
300 S. WACKER DRIVE, SUITE 2500
CHICAGO, IL 60606

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