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Patent Assignment Assignor Details
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Assignor Name : DUYVESTEYN, WILLEM P. C.
Total Assignments: 10
Assignment: 1
Reel/Frame:004365/0462   Pages: 2
Recorded: 01/31/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DUYVESTEYN, WILLEM P. C.
Exec Dt:
01/21/1985
2
HOGSETT, ROBERT E.
Exec Dt:
01/22/1985
Assignee
1
AMAX INC.
AMAX ENTER
A CORP. OF NY
GREENWICH, CONNECTICUT 06830
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4610722
NONE
06696977
Correspondence name and address
MICHAEL A. CIOMEK
AMAX INC., P. O. BOX 1700
GREENWICH, CT 06836-1700
Assignment: 2
Reel/Frame:004365/0464   Pages: 2
Recorded: 01/31/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DUYVESTEYN, WILLEM P. C.
Exec Dt:
01/21/1985
2
JHA, MAHESH
Exec Dt:
01/29/1985
Assignee
1
AMAX INC.
AMAX CENTER
A CORP OF NY
GREENWICH, CONNECTICUT 06830
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4614543
NONE
06696978
Correspondence name and address
MICHAEL A. CIOMEK
AMAX INC., P. O. BOX 1700
GREENWICH, CT 06836-1700
Assignment: 3
Reel/Frame:004365/0466   Pages: 2
Recorded: 01/31/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DUYVESTEYN, WILLEM P. C.
Exec Dt:
01/21/1985
2
JHA, MAHESH C.
Exec Dt:
01/29/1985
Assignee
1
AMAX INC.
AMAX CENTER
A CORP OF NY
GREENWICH, CONNECTICUT 06830
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4572771
NONE
06696979
Correspondence name and address
MICHAEL A. CIOMEK
AMAX INC., P. O. BOX 1700
GREENWICH, CT 06836-1700
Assignment: 4
Reel/Frame:004365/0468   Pages: 2
Recorded: 01/31/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DUYVESTEYN, WILLEM P. C.
Exec Dt:
01/21/1985
2
JHA, MAHESH C.
Exec Dt:
01/29/1985
Assignee
1
AMAX INC.
AMAX CENTER
A CORP OF NY
GREENWICH, CONNECTICUT 06830
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4610721
NONE
06696980
Correspondence name and address
MICHAEL A. CIOMEK
AMAX INC., P. O. BOX 1700
GREENWICH, CT 06836-1700
Assignment: 5
Reel/Frame:004365/0470   Pages: 2
Recorded: 01/31/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
DUYVESTEYN, WILLEM P. C.
Exec Dt:
01/21/1985
Assignee
1
AMAX INC.
AMAX CENTER
A CORP OF NY
GREENWICH, CONNECTICUT 06830
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4605435
NONE
06696981
Correspondence name and address
MICHAEL A. CIOMEK
AMAX INC., AMAX CENTER, P. O. BOX 1700
GREENWICH, CT 06836-1700
Assignment: 6
Reel/Frame:006201/0800   Pages: 3
Recorded: 06/10/1992
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DUYVESTEYN, WILLEM P. C.
Exec Dt:
05/27/1992
2
LIU, HOUYUAN
Exec Dt:
05/27/1992
3
DUYVESTEYN, SASKIA
Exec Dt:
05/27/1992
Assignee
1
BHP-UTAH INTERNATIONAL INC., A CORPORATION OF DELAWARE
1100 BORDEAUX DRIVE
SUNNYVALE, CALIFORNIA 94089-1200
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5292490
NONE
07896675
Correspondence name and address
EUGENE J. KALIL
HOPGOOD, CALIMAFDE, KALIL,
BLAUSTEIN & JUDLOWE
60 EAST 42ND STREET
NEW YORK, NY 10165
Assignment: 7
Reel/Frame:006370/0143   Pages: 4
Recorded: 10/28/1992
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DUYVESTEYN, WILLEM P. C.
Exec Dt:
10/20/1992
2
LASTRA, MANUEL R.
Exec Dt:
10/20/1992
3
LIU, HOUYUAN
Exec Dt:
10/20/1992
Assignee
1
BHP MINERALS INTERNATIONAL INC.
1190 BORDEAUX DRIVE
SUNNYVALE, CALIFORNIA 94086
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5236491
NONE
07967811
Correspondence name and address
EUGENE J. KALIL
HOPGOOD, CALIMAFDE, KALIL,
BLAUSTEIN & JUDLOWE
60 EAST 42ND STREET
NEW YORK, NY 10165
Assignment: 8
Reel/Frame:028807/0690   Pages: 4
Recorded: 08/17/2012
Attorney Dkt #:P002.01* (57031.0205)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P. C.
Exec Dt:
08/06/2009
2
KIFT, JULIAN
Exec Dt:
08/21/2009
Assignee
1
MARATHON OIL CANADA CORPORATION
440 - SECOND AVENUE, S.W.
ERNST & YOUNG TOWER
CALGARY, ALBERTA, CANADA T2P 5E9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8658029
US20120305452
13584677
Correspondence name and address
HOLLAND & HART LLP
PO BOX 8749
DENVER, CO 80201
Assignment: 9
Reel/Frame:024500/0849   Pages: 5
Recorded: 06/08/2010
Attorney Dkt #:EMCM001US0
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P. C.
Exec Dt:
06/08/2010
Assignee
1
EMC METALS CORPORATION
888 DUNSMUIR STREET
11TH FLOOR
VANCOUVER, BRITISH COLUMBIA, CANADA V6C 3K4
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20110298270
12795459
Correspondence name and address
JOHN A. FORTKORT
9442 N. CAPITAL OF TEXAS HIGHWAY
BUILDING 1, SUITE 500
AUSTIN, TX 78759
Assignment: 10
Reel/Frame:027831/0062   Pages: 4
Recorded: 03/07/2012
Attorney Dkt #:P014.01 (57031.0175)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P. C.
Exec Dt:
03/06/2012
2
KIFT, JULIAN
Exec Dt:
03/05/2012
Assignee
1
MARATHON OIL CANADA CORPORATION
440 - SECOND AVENUE, S.W.
ERNST & YOUNG TOWER
CALGARY, ALBERTA, CANADA T2P 5E9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20120151834
13310395
Correspondence name and address
HOLLAND & HART, LLP
P.O BOX 8749
DENVER, CO 80201

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