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Patent Assignment Assignor Details
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Assignor Name : DUYVESTEYN, WILLEM P.C.
Total Assignments: 51
Assignment: 1
Reel/Frame:004365/0439   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 F.
Exec Dt:
01/29/1985
Assignee
1
AMAX INC., A CORP OF NY
AMAX CENTER
GREENWICH, CONNECTICUT 06830
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4552629
NONE
06696985
Correspondence name and address
MICHAEL A. CIOMEK
AMAX INC., P. O. BOX 1700
GREENWICH, CT 06836-1700
Assignment: 2
Reel/Frame:005750/0370   Pages: 3
Recorded: 06/25/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
06/24/1991
2
LIU, HOUYUAN
Exec Dt:
06/24/1991
3
LABAO, NICHOLAS L.
Exec Dt:
06/24/1991
4
SHRESTHA, PURUSOTAM L.
Exec Dt:
06/24/1991
Assignee
1
BHP-UTAH INTERNATIONAL INC.
UNITED STATES
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5178848
NONE
07720915
Correspondence name and address
MICHAEL A. CIOMEK
HOPGOOD, CALIMAFDE, KALIL,
BLAUSTEIN & JUDLOWE
60 EAST 42ND STREET
NEW YORK, NY 10165
Assignment: 3
Reel/Frame:005871/0670   Pages: 4
Recorded: 09/19/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
09/07/1991
Assignee
1
BHP-UTAH INTERNATIONAL INC.
1100 BORDEAUX DRIVE
A CORPORATION OF DELAWARE
SUNNYVALE, CALIFORNIA 94089-1200
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5229003
NONE
07763446
Correspondence name and address
EUGENE J. KALIL
HOPGOOD, CALIMAFDE, KALIL,
BLAUSTEIN & JUDLOWE
60 EAST 42ND ST.
NEW YORK, NY 10165
Assignment: 4
Reel/Frame:006044/0128   Pages: 4
Recorded: 03/03/1992
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
02/28/1992
2
LIU, HOUYUAN
Exec Dt:
02/28/1992
3
DUYVESTEYN, SASKIA
Exec Dt:
02/29/1992
Assignee
1
BHP-UTAH INTERNATIONAL INC.
1100 BORDEAUX DRIVE
A CORPORATION OF DE
SUNNYVALE, CALIFORNIA 94089-1200
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5304359
NONE
07845068
Correspondence name and address
EUGENE J. KALIL
HOPGOOD CALIMAFDE KALIL BLAUSTEIN
AND JUDLOWE
60 EAST 42ND ST.
NEW YORK, NY 10165
Assignment: 5
Reel/Frame:006738/0584   Pages: 3
Recorded: 10/15/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
09/29/1993
2
BAKKER, TEUN
Exec Dt:
09/29/1993
3
LASTRA, MANUEL R.
Exec Dt:
09/29/1993
Assignee
1
BHP MINERALS INTERNATIONAL INC.
1190 BORDEAUX DRIVE
SUNNYVALE, CALIFORNIA 94089-1209
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5441712
NONE
08137591
Correspondence name and address
EUGENE J. KALIL
HOPGOOD, CALIMAFDE, KALIL, BLAUSTEIN
& JUDLOWE
60 EAST 42ND STREET
NEW YORK, NY 10165
Assignment: 6
Reel/Frame:007723/0651   Pages: 3
Recorded: 09/11/1995
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
08/29/1995
2
LASTRA, MANUEL R.
Exec Dt:
08/29/1995
3
LIU, HOUYUAN
Exec Dt:
08/29/1995
Assignee
1
BHP MINERALS INTERNATIONAL INC.
204 EDISON WAY
RENO, NEVADA 89502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5571308
NONE
08502923
Correspondence name and address
EUGENE J. KALIL
HOPGOOD, CALIMAFDE, KALIL ET AL.
60 EAST 42ND STREET
NEW YORK, NY 10165
Assignment: 7
Reel/Frame:007765/0803   Pages: 3
Recorded: 10/03/1995
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
09/25/1995
2
OMOFOMA, MATT
Exec Dt:
09/25/1995
Assignee
1
BHP MINERALS INTERNATIONAL INC.
204 EDISON WAY
RENO, NEVADA 89502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5626648
NONE
08503130
Correspondence name and address
HOPGOOD, CALIMAFDE, KALIL & JUDLOWE
EUGENE J. KALIL
60 EAST 42ND STREET
NEW YORK, NY 10165
Assignment: 8
Reel/Frame:009416/0527   Pages: 5
Recorded: 12/07/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HANSON, JAMES S.
Exec Dt:
11/23/1998
2
DUYVESTEYN, WILLEM P.C.
Exec Dt:
11/23/1998
3
LUTCH, JAMES J.
Exec Dt:
11/23/1998
Assignee
1
BHP MINERALS INTERNATIONAL INC., A CORP. OF DELAWARE
204 EDISON WAY
RENO, NEVADA 89502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6007709
NONE
09002057
Correspondence name and address
PAUL V. DEL GIUDICE
2001 JEFFERSON DAVIS HIGHWAY
SUITE 200
ARLINGTON, VIRGINIA 22202
Assignment: 9
Reel/Frame:009708/0817   Pages: 3
Recorded: 01/25/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
01/07/1999
2
BUDDEN, JULIA R.
Exec Dt:
12/23/1998
3
HULS, BERNARDUS J.
Exec Dt:
12/24/1998
Assignee
1
BHP MINERALS INTERNATIONAL INC.
204 EDISON WAY
RENO, NEVADA 89502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6074558
NONE
09193332
Correspondence name and address
HOPGOOD, CALIMAFDE, KALIL & JUDLOWE
EUGENE J. KALIL
60 EAST 42ND STREET
NEW YORK, NY 10165
Assignment: 10
Reel/Frame:009738/0351   Pages: 3
Recorded: 02/01/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
01/25/1999
2
BUDDEN, JULIA ROSE
Exec Dt:
12/23/1998
3
PICAVET, MERIJN AMILCARE
Exec Dt:
01/20/1999
Assignee
1
BHP MINERALS INTERNATIONAL
204 EDISON WAY
RENO, NEVADA 89502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5968349
NONE
09192892
Correspondence name and address
HOPGOOD, CALIMAFDE, KALIL & JUDLOWE
EUGENE J. KALIL
60 EAST 42ND STREET
NEW YORK, NY 10165
Assignment: 11
Reel/Frame:010106/0212   Pages: 7
Recorded: 07/21/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
04/21/1999
2
NEUDORF, DAVID A.
Exec Dt:
04/26/1999
3
WEENINK, ERIK M.
Exec Dt:
04/22/1999
4
HANSON, JAMES S.
Exec Dt:
04/22/1999
Assignee
1
BHP MINERALS INTERNATIONAL, INC.
204 EDISON WAY
RENO, NEVADA 89502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20010001650
09265279
Correspondence name and address
BRINKS HOFER GILSON & LIONE
G. PETER NICHOLS
P.O. BOX 10395
CHICAGO, IL 60610
Assignment: 12
Reel/Frame:010555/0425   Pages: 6
Recorded: 02/11/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
01/03/2000
2
BUDDEN, JULIA R.
Exec Dt:
01/21/2000
3
LASTRA, MANUEL R.
Exec Dt:
01/21/2000
Assignee
1
BHP MINERALS INTERNATIONAL, INC.
204 EDISON WAY
RENO, NEVADA 89502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6387239
NONE
09441488
Correspondence name and address
BRINKS HOFER GILSON & LIONE
G. PETER NICHOLS
P.O. BOX 10395
CHICAGO, IL 60610
Assignment: 13
Reel/Frame:010661/0622   Pages: 6
Recorded: 02/29/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
02/21/2000
2
WEENINK, ERIK M.
Exec Dt:
02/13/2000
3
NEUDORF, DAVID A.
Exec Dt:
02/18/2000
Assignee
1
BHP MINERALS INTERNATIONAL, INC.
204 EDISON WAY
RENO, NEVADA 89502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6350420
NONE
09515972
Correspondence name and address
BRINKS HOFER GILSON & LIONE
G. PETER NICHOLS
P.O. BOX 10395
CHICAGO, IL 60610
Assignment: 14
Reel/Frame:010855/0931   Pages: 7
Recorded: 05/30/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
05/09/2000
2
SPITLER, TIMOTHY MALCOME
Exec Dt:
05/11/2000
3
SABACKY, BRUCE JAMES
Exec Dt:
05/11/2000
4
PROCHAZKA, JAN
Exec Dt:
05/12/2000
Assignee
1
BHP MINERALS INTERNATIONAL, INC.
204 EDISON WAY
RENO, NEVADA 89502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6548039
NONE
09503636
Correspondence name and address
BRINKS HOFER GILSON & LIONE
G. PETER NICHOLS
P.O. BOX 10395
CHICAGO, IL 60610
Assignment: 15
Reel/Frame:010856/0308   Pages: 7
Recorded: 05/30/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
05/09/2000
2
SPITLER, TIMOTHY MALCOME
Exec Dt:
05/11/2000
3
SABACKY, BRUCE J.
Exec Dt:
05/11/2000
4
PROCHAZKA, JAN
Exec Dt:
05/12/2000
Assignee
1
BHP MINERALS INTERNATIONAL, INC.
204 EDISON WAY
RENO, NEVADA 89502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6440383
NONE
09503365
Correspondence name and address
BRINKS HOFER GILSON & LIONE
G. PETER NICHOLS
P.O. BOX 10395
CHICAGO, IL 60610
Assignment: 16
Reel/Frame:010867/0154   Pages: 13
Recorded: 06/09/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
05/09/2000
2
SABACKY, BRUCE JAMES
Exec Dt:
05/11/2000
3
VERHULST, DIRK EDMOND
Exec Dt:
05/11/2000
4
WEST-SELLS, PAUL GEORGE
Exec Dt:
05/04/2000
5
SPITLER, TIMOTHY MALCOME
Exec Dt:
05/11/2000
6
VINCE, ANDREW
Exec Dt:
05/23/2000
7
BURKHOLDER, JAMES R.
Exec Dt:
05/11/2000
8
HULS, BERNARDUS JOSEPHUS PAULUS MARIA
Exec Dt:
05/18/2000
Assignee
1
BHP MINERALS INTERNATIONAL, INC.
204 EDISON WAY
RENO, NEVADA 89502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6375923
NONE
09500207
Correspondence name and address
BRINKS HOFER GILSON ET AL
G. PETER NICHOLS
P.O. BOX 10395
CHICAGO, IL 60610
Assignment: 17
Reel/Frame:010833/0747   Pages: 4
Recorded: 06/01/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
05/19/2000
Assignee
1
BHP MINERALS INTERNATIONAL, INC.
204 EDISON WAY
RENO, NEVADA 89502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6340423
NONE
09523082
Correspondence name and address
BRINKS HOFER GILSON & LIONE
G. PETER NICHOLS
P.O. BOX 10395
CHICAGO, IL 60610
Assignment: 18
Reel/Frame:010897/0970   Pages: 5
Recorded: 07/06/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
06/27/2000
2
LIU, HOUYUAN
Exec Dt:
06/26/2000
3
DAVIS, MICHAEL J.
Exec Dt:
06/27/2000
Assignee
1
BHP MINERALS INTERNATIONAL, INC.
204 EDISON WAY
RENO, NEVADA 89502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6312500
NONE
09539063
Correspondence name and address
BRINKS HOFER GILSON & LIONE
G. PETER NICHOLS
P.O. BOX 10395
CHICAGO, ILLINOIS 60610
Assignment: 19
Reel/Frame:011495/0331   Pages: 6
Recorded: 03/06/2001
Conveyance: CORRECTED ASSIGNMENT TO CORRECT THE NAME OF THE ASSIGNEE IN THE ASSIGNMENT DOCUMENT FILED ON JULY 6, 2000; RECORDED AT REEL 010897, FRAME NO. 0970
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
06/27/2000
2
LIU, HOUYUAN
Exec Dt:
06/26/2000
3
DAVIS, MICHAEL J.
Exec Dt:
06/27/2000
Assignee
1
BHP MINERALS INTERNATIONAL INC.
204 EDISON WAY
RENO, NEVADA 89502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6312500
NONE
09539063
Correspondence name and address
BRINKS HOFER GILSON & LIONE
G. PETER NICHOLS
P.O. BOX 10395
CHICAGO, IL 60610
Assignment: 20
Reel/Frame:011421/0605   Pages: 5
Recorded: 12/27/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
12/22/2000
2
LIU, HOUYUAN
Exec Dt:
12/22/2000
Assignee
1
BHP MINERALS INTERNATIONAL INC.
1360 POST OAK BOULEVARD; SUITE 150
HOUSTON, TEXAS 77056
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6395061
NONE
09748917
Correspondence name and address
BRINKS HOFER GILSON & LIONE
G. PETER NICHOLS
P.O. BOX 10395
CHICAGO, IL 60610
Assignment: 21
Reel/Frame:017923/0150   Pages: 5
Recorded: 07/12/2006
Attorney Dkt #:7281-70445-02
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
03/28/2006
2
MORLEY, RAYMOND L.
Exec Dt:
06/01/2006
3
HANSON, JAMES S.
Exec Dt:
06/14/2006
Assignee
1
WESTERN OIL SANDS USA, INC.
204 EDISON WAY
RENO, NEVADA 89502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7909989
US20060076274
11249234
Correspondence name and address
TED W. BAKER/KLARQUIST SPARKMAN LLP
121 SW SALMON STREET
SUITE 1600
PORTLAND, OR 97204
Assignment: 22
Reel/Frame:017869/0374   Pages: 4
Recorded: 06/27/2006
Attorney Dkt #:7281-70226-03
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
04/11/2006
2
WICKER, GORDON R.
Exec Dt:
04/11/2006
Assignee
1
WESTERN OIL SANDS, INC.
440 - 2ND AVENUE S.W.
SUITE 2400, ERNST & YOUNG TOWER
CALGARY, ALBERTA, CANADA T2P 5E9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7618597
US20060144760
11233385
Correspondence name and address
ROBERT C. RYAN
KLARQUIST SPARKMAN, LLP
ONE WORLD TRADE CENTER, SUITE 1600
121 S.W. SALMON STREET
PORTLAND, OREGON 97204-2988
Assignment: 23
Reel/Frame:017736/0950   Pages: 6
Recorded: 06/05/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
06/01/2006
2
KIFT, JULIAN
Exec Dt:
06/01/2006
3
MORLEY, RAYMOND L.
Exec Dt:
06/01/2006
Assignee
1
WESTERN OIL SANDS USA, INC.
204 EDISON WAY
RENO, NEVADA 89502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7585407
US20070209971
11371327
Correspondence name and address
TED W. BAKER
KLARQUIST SPARKMAN, LLP
ONE WORLD TRADE CENTER, SUITE 1600
121 S.W. SALMON STREET
PORTLAND, OREGON 97204-2988
Assignment: 24
Reel/Frame:020611/0390   Pages: 3
Recorded: 03/06/2008
Attorney Dkt #:57031.0022
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
03/04/2008
Assignee
1
MARATHON OIL COMPANY
5555 SAN FELIPE
HOUSTON, TEXAS 77056
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7985333
US20080210602
12041554
Correspondence name and address
HOLLAND & HART, LLP
60 E. SOUTH TEMPLE, SUITE 2000
SALT LAKE CITY, UT 84111-1031
Assignment: 25
Reel/Frame:020686/0181   Pages: 3
Recorded: 03/21/2008
Attorney Dkt #:57031.830004.US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
03/20/2008
Assignee
1
MARATHON OIL COMPANY
5555 SAN FELIPE
HOUSTON, TEXAS 77056
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7998342
US20080156702
11971046
Correspondence name and address
HOLLAND & HART, LLP
P.O BOX 8749
DENVER, CO 80201
Assignment: 26
Reel/Frame:021997/0250   Pages: 3
Recorded: 12/17/2008
Attorney Dkt #:57031.830007.US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
03/24/2008
2
MORLEY, RAYMOND L.
Exec Dt:
04/07/2008
Assignee
1
MARATHON OIL CANADA CORPORATION
440 - SECOND AVENUE, S.W., ERNST & YOUNG TOWER
SUITE 2400
CALGARY, ALBERTA, CANADA T2P 5E9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7811444
US20070284283
11450591
Correspondence name and address
HOLLAND & HART, LLP
P.O BOX 8749
DENVER, CO 80201
Assignment: 27
Reel/Frame:022213/0971   Pages: 3
Recorded: 02/05/2009
Attorney Dkt #:57031.830029.US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
02/05/2009
Assignee
1
MARATHON OIL CANADA CORPORATION
ERNST & YOUNG TOWER, 440 SECOND AVE S.W.
SUITE 2400
CALGARY ALBERTA, CANADA T2P 5E9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7909985
US20060163117
11318056
Correspondence name and address
SHANE M. NIEBERGALL
P.O. BOX 8749
DENVER, CO 80201-8749
Assignment: 28
Reel/Frame:023070/0194   Pages: 3
Recorded: 08/07/2009
Attorney Dkt #:57031.830017.US0
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
08/06/2009
Assignee
1
MARATHON OIL CANADA CORPORATION
440 - SECOND AVENUE, S.W.
ERNST & YOUNG TOWER
CALGARY, CANADA T2P 5E9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20110017642
12509298
Correspondence name and address
SCOTT A. BRAIRTON
P.O. BOX 8749
DENVER, CO 80201
Assignment: 29
Reel/Frame:023128/0933   Pages: 5
Recorded: 08/21/2009
Attorney Dkt #:57031.830002.US3
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, CANADA T2P 5E9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8257580
US20090301937
12512758
Correspondence name and address
SCOTT A. BRAIRTON
P.O. BOX 8749
DENVER, CO 80201
Assignment: 30
Reel/Frame:023283/0350   Pages: 3
Recorded: 09/25/2009
Attorney Dkt #:57031.830030.US0
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
09/22/2009
Assignee
1
MARATHON OIL CANADA CORPORATION
440 - SECOND AVENUE, S.W.
ERNST & YOUNG TOWER
CALGARY, CANADA T2P 5E9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8663462
US20110062057
12560964
Correspondence name and address
SCOTT A. BRAIRTON
P.O. BOX 8749
DENVER, CO 80201
Assignment: 31
Reel/Frame:023407/0668   Pages: 3
Recorded: 10/22/2009
Attorney Dkt #:57031.0064
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
10/08/2009
2
KIFT, JULIAN
Exec Dt:
10/21/2009
Assignee
1
MARATHON OIL CANADA CORPORATION
440 - SECOND AVENUE S.W.
ERNST & YOUNG TOWER
CALGARY, CANADA T2P 5E9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8101067
US20100032348
12575241
Correspondence name and address
SCOTT A. BRAIRTON
P.O. BOX 8749
DENVER, CO 80201
Assignment: 32
Reel/Frame:023404/0678   Pages: 5
Recorded: 10/21/2009
Attorney Dkt #:57031.830011.US0
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
10/16/2009
2
SALAZAR, JOSE ARMANDO
Exec Dt:
10/19/2009
3
ARD, CHRISTOPHER DANIEL
Exec Dt:
10/19/2009
Assignee
1
MARATHON OIL CANADA CORPORATION
440 - SECOND AVENUE, S.W.
ERNST & YOUNG TOWER
CALGARY, CANADA T2P 5E9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20110084000
12579193
Correspondence name and address
SCOTT A. BRAIRTON
P.O. BOX 8749
DENVER, CO 80201
Assignment: 33
Reel/Frame:024147/0711   Pages: 3
Recorded: 03/26/2010
Attorney Dkt #:57031.830033.US0
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
03/26/2010
Assignee
1
MARATHON OIL CANADA CORPORATION
440 - SECOND AVENUE, N.W.
ERNST & YOUNG TOWER
CALGARY, CANADA T2P 5E9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20110180454
12695885
Correspondence name and address
HOLLAND & HART, LLP
P.O BOX 8749
DENVER, CO 80201
Assignment: 34
Reel/Frame:024147/0807   Pages: 8
Recorded: 03/26/2010
Attorney Dkt #:57031.830032.US0
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
03/26/2010
2
KIFT, JULIAN
Exec Dt:
01/26/2010
3
THOMPSON, WHIP C.
Exec Dt:
01/26/2010
Assignee
1
MARATHON OIL CANADA CORPORATION
440 - SECOND AVENUE, N.W.
ERNST & YOUNG TOWER
CALGARY, CANADA T2P 5E9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20110180458
12692127
Correspondence name and address
HOLLAND & HART, LLP
P.O BOX 8749
DENVER, CO 80201
Assignment: 35
Reel/Frame:024194/0016   Pages: 8
Recorded: 04/06/2010
Attorney Dkt #:57031.830031.US0
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
03/29/2010
2
KIFT, JULIAN
Exec Dt:
01/26/2010
3
HOFFMAN, CHERISH M.
Exec Dt:
01/26/2010
4
THOMPSON, WHIP C.
Exec Dt:
01/26/2010
Assignee
1
MARATHON OIL CANADA CORPORATION
440 - SECOND AVENUE, N.W.
ERNST & YOUNG TOWER
CALGARY, CANADA T2P 5E9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8864982
US20110155648
12648164
Correspondence name and address
HOLLAND & HART, LLP
P.O BOX 8749
DENVER, CO 80201
Assignment: 36
Reel/Frame:024452/0589   Pages: 3
Recorded: 05/27/2010
Attorney Dkt #:57031.0063
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
04/06/2010
2
SALAZAR, JOSE ARMANDO
Exec Dt:
04/07/2010
Assignee
1
MARATHON OIL CANADA CORPORATION
440 - SECOND AVENUE, N.W.
ERNST & YOUNG TOWER
CALGARY, CANADA T2P 5E9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8435402
US20110233114
12749068
Correspondence name and address
SCOTT A. BRAIRTON
P.O BOX 8749
DENVER, CO 80201
Assignment: 37
Reel/Frame:024367/0120   Pages: 3
Recorded: 05/11/2010
Attorney Dkt #:57031.0088
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
04/20/2010
Assignee
1
MARATHON OIL CANADA CORPORATION
440 - SECOND AVENUE, N.W.
ERNST & YOUNG TOWER
CALGARY, CANADA T2P 5E9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8449763
US20100264062
12761204
Correspondence name and address
SCOTT A. BRAIRTON
P.O BOX 8749
DENVER, CO 80201
Assignment: 38
Reel/Frame:024998/0032   Pages: 5
Recorded: 09/16/2010
Attorney Dkt #:EMCM005US0
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
09/08/2010
Assignee
1
EMC METALS CORPORATION
888 DUNSMUIR STREET
11TH FLOOR
VANCOUVER, BRITISH COLUMBIA, CANADA V6C 3K4
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20120055850
12874460
Correspondence name and address
JOHN A. FORTKORT
9442 N. CAPITAL OF TEXAS HIGHWAY
BUILDING 1, SUITE 500
AUSTIN, TX 78759
Assignment: 39
Reel/Frame:025866/0530   Pages: 12
Recorded: 02/25/2011
Attorney Dkt #:57031.0133 (830032.US1)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
02/10/2011
2
MAHENDRA, JOSHI
Exec Dt:
02/24/2011
3
KIFT, JULIAN
Exec Dt:
02/10/2011
4
ZELNIK, DOMINIC J.
Exec Dt:
02/22/2011
5
THOMPSON, WHIP C.
Exec Dt:
02/10/2011
6
HOFFMAN, CHERISH M.
Exec Dt:
02/10/2011
Assignee
1
MARATHON OIL CANADA CORPORATION
440 - SECOND AVENUE, S.W.
ERNST & YOUNG TOWER
CALGARY, ALBERTA, CANADA T2P 5E9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8877044
US20110180459
12956701
Correspondence name and address
HOLLAND & HART, LLP
P.O BOX 8749
DENVER, CO 80201
Assignment: 40
Reel/Frame:026060/0784   Pages: 4
Recorded: 04/01/2011
Attorney Dkt #:EMCM006US0
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
03/15/2011
Assignee
1
EMC METALS CORPORATION
888 DUNSMUIR STREET
11TH FLOOR
VANCOUVER, BRITISH COLUMBIA, CANADA V6C 3K4
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20120207656
13025393
Correspondence name and address
JOHN A. FORTKORT
9442 N. CAPITAL OF TEXAS HIGHWAY
BUILDING 1, SUITE 500
AUSTIN, TX 78759
Assignment: 41
Reel/Frame:026239/0071   Pages: 4
Recorded: 05/06/2011
Attorney Dkt #:EMCM007US0
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
05/03/2011
Assignee
1
EMC METALS CORPORATION
888 DUNSMUIR STREET
11TH FLOOR
VANCOUVER, BRITISH COLUMBIA, CANADA V6C 3K4
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20120204680
13102652
Correspondence name and address
JOHN A. FORTKORT
9442 N. CAPITAL OF TEXAS HIGHWAY
BUILDING 1, SUITE 500
AUSTIN, TX 78759
Assignment: 42
Reel/Frame:026324/0574   Pages: 4
Recorded: 05/23/2011
Attorney Dkt #:EMCM002A
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
05/03/2011
Assignee
1
EMC METALS CORPORATION
888 DUNSMUIR STREET
11TH FLOOR
VANCOUVER, BRITISH COLUMBIA, CANADA V6C 3K4
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20120263637
13087986
Correspondence name and address
FORTKORT & HOUSTON P.C.
9442 N. CAPITAL OF TEXAS HIGHWAY
ARBORETUM PLAZA ONE, SUITE 500
AUSTIN, TX 78759
Assignment: 43
Reel/Frame:029767/0415   Pages: 4
Recorded: 02/06/2013
Attorney Dkt #:57031.0118
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
01/23/2013
2
MORLEY, RAYMOND L.
Exec Dt:
01/22/2013
Assignee
1
MARATHON CANADIAN OIL SANDS HOLDING LIMITED
440 SECOND AVENUE SW
SUITE 2400, ERNST & YOUNG TOWER
CALGARY, CANADA T2P 5E9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8529687
US20100320118
12869264
Correspondence name and address
SHANE M. NIEBERGALL
P.O. BOX 8749
DENVER, CO 80201
Assignment: 44
Reel/Frame:037341/0089   Pages: 4
Recorded: 12/21/2015
Attorney Dkt #:SCAN011US0
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
12/22/2014
Assignee
1
SCANDIUM INTERNATIONAL MINING CORPORATION
1430 GREG STREET
SUITE 501
SPARKS, NEVADA 89431
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9982326
US20160177420
14976421
Correspondence name and address
FORTKORT & HOUSTON P.C.
9442 N. CAPITAL OF TEXAS HIGHWAY
ARBORETUM PLAZA ONE, SUITE 500
AUSTIN, TX 78759
Assignment: 45
Reel/Frame:036971/0453   Pages: 4
Recorded: 11/05/2015
Attorney Dkt #:SCAN010US0
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
01/27/2015
Assignee
1
SCANDIUM INTERNATIONAL MINING CORPORATION
1430 GREG STREET
SUITE 501
SPARKS, NEVADA 89431
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9982325
US20160153070
14933559
Correspondence name and address
FORTKORT & HOUSTON P.C.
9442 N. CAPITAL OF TEXAS HIGHWAY
ARBORETUM PLAZA ONE, SUITE 500
AUSTIN, TX 78759
Assignment: 46
Reel/Frame:037920/0024   Pages: 4
Recorded: 03/08/2016
Attorney Dkt #:SCAN013US0
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
02/10/2015
Assignee
1
SCANDIUM INTERNATIONAL MINING CORPORATION
1430 GREG STREET
SUITE 501
SPARKS, NEVADA 89431
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11142809
US20160289795
15040116
Correspondence name and address
JOHN A. FORTKORT
9442 N. CAPITAL OF TEXAS HIGHWAY
1-500
AUSTIN, TX 78759
Assignment: 47
Reel/Frame:053569/0072   Pages: 3
Recorded: 08/22/2020
Attorney Dkt #:SCAN019US0
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
08/17/2020
Assignee
1
SCANDIUM INTERNATIONAL MINING CORPORATION
1430 GREG STREET
SUITE 501
SPARKS, NEVADA 89431
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11673812
US20210347651
16994625
Correspondence name and address
FORTKORT & HOUSTON PC
9442 NORTH CAPITAL OF TEXAS HWY
ARBORETUM PLAZA 1. SUITE 500
AUSTIN, TX 78759
Assignment: 48
Reel/Frame:053569/0075   Pages: 3
Recorded: 08/22/2020
Attorney Dkt #:SCAN020US0
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
08/20/2020
Assignee
1
SCANDIUM INTERNATIONAL MINING CORPORATION
1430 GREG STREET
SUITE 501
SPARKS, NEVADA 89431
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20210172041
16998415
Correspondence name and address
FORTKORT & HOUSTON PC
9442 NORTH CAPITAL OF TEXAS HWY
ARBORETUM PLAZA 1. SUITE 500
AUSTIN, TX 78759
Assignment: 49
Reel/Frame:055863/0078   Pages: 3
Recorded: 04/08/2021
Attorney Dkt #:SCAN017US0
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
04/08/2021
Assignee
1
SCANDIUM INTERNATIONAL MINING COMPANY
1430 GREG STREET
SUITE 501
SPARKS, NEVADA 89431
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10988828
US20190161827
16198756
Correspondence name and address
FORTKORT & HOUSTON PC
9442 N. CAPITAL OF TEXAS HWY
ARBORETUM PLAZA ONE, SUITE 500
AUSTIN, TX 78759
Assignment: 50
Reel/Frame:062633/0699   Pages: 2
Recorded: 02/08/2023
Attorney Dkt #:035-001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
02/05/2023
Assignee
1
EXTRACTIVE METALLURGY CONSULTANCY, LLC
401 RYLAND STREET
SUITE 200-A
RENO, NEW YORK 89502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11732326
NONE
18166457
Correspondence name and address
RYAN SCHNEER
250 W 85TH ST, SUITE 7E
7E
NEW YORK, NY 10024
Assignment: 51
Reel/Frame:063824/0897   Pages: 3
Recorded: 02/11/2023
Attorney Dkt #:035-001
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S ADDRESS STATE/COUNTRY PREVIOUSLY RECORDED AT REEL: 062633 FRAME: 0699. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT .
Assignor
1
DUYVESTEYN, WILLEM P.C.
Exec Dt:
02/05/2023
Assignee
1
EXTRACTIVE METALLURGY CONSULTANCY, LLC
401 RYLAND STREET
SUITE 200-A
RENO, NEVADA 89502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11732326
NONE
18166457
Correspondence name and address
RYAN SCHNEER
233 E 69TH ST, SUITE 6D
NEW YORK, NY 10021

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