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Patent Assignment Assignor Details
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Assignor Name : STOIK, RANDY STEVEN
Total Assignments: 7
Assignment: 1
Reel/Frame:020443/0809   Pages: 2
Recorded: 01/17/2008
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
STOIK, RANDY STEVEN
Exec Dt:
01/17/2008
Assignee
1
NATIONAL OILWELL VARCO, L.P.
P.O. BOX 4888
7909 PARKWOOD CIR.
HOUSTON, TEXAS 77210
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7637329
US20090183918
12009328
Correspondence name and address
GUY MCCLUNG
#114 5315-B F.M. 1960 RD., WEST
HOUSTON, TX 77069
Assignment: 2
Reel/Frame:036322/0723   Pages: 3
Recorded: 08/13/2015
Attorney Dkt #:16214.107.62.US.U2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KONDUC, KAMERON WAYNE
Exec Dt:
09/09/2014
2
STOIK, RANDY STEVEN
Exec Dt:
09/09/2014
Assignee
1
DRECO ENERGY SERVICES ULC
6415 75TH STREET NW
EDMONTON, CANADA T6E 0T3
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9677298
US20160010323
14799207
Correspondence name and address
WINTHROP & WEINSTINE, P.A.
CAPELLA TOWER, SUITE 3500
225 SOUTH SIXTH STREET
MINNEAPOLIS, MN 55402
Assignment: 3
Reel/Frame:042379/0738   Pages: 4
Recorded: 05/15/2017
Attorney Dkt #:16214.195.88.US.U2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KONDUC, KAMERON WAYNE
Exec Dt:
04/06/2016
2
STOIK, RANDY STEVEN
Exec Dt:
04/06/2016
3
KONOWALEC, ROMAN
Exec Dt:
04/06/2016
4
CALLAGHAN, JONATHON DOUGLAS
Exec Dt:
04/06/2016
5
LIU, LI
Exec Dt:
04/06/2016
6
CHALUS, DAVID FREDERICK
Exec Dt:
04/06/2016
Assignee
1
NATIONAL OILWELL VARCO, L.P.
7909 PARKWOOD CIRCLE DRIVE
HOUSTON, TEXAS 77036
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10822924
US20170254181
15451968
Correspondence name and address
WINTHROP & WEINSTINE, P.A.
CAPELLA TOWER, SUITE 3500
225 SOUTH SIXTH STREET
MINNEAPOLIS, MN 55402
Assignment: 4
Reel/Frame:054151/0602   Pages: 5
Recorded: 10/23/2020
Attorney Dkt #:5233.052US2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KONDUC, KAMERON WAYNE
Exec Dt:
04/06/2016
2
STOIK, RANDY STEVEN
Exec Dt:
04/06/2016
3
KONOWALEC, ROMAN
Exec Dt:
04/06/2016
4
CALLAGHAN, JONATHON DOUGLAS
Exec Dt:
04/06/2016
5
LIU, LI
Exec Dt:
04/06/2016
6
CHALUS, DAVID FREDERICK
Exec Dt:
04/06/2016
Assignee
1
NATIONAL OILWELL VARCO, L.P.
7909 PARKWOOD CIRCLE DRIVE
HOUSTON, TEXAS 77036
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11549337
US20210025263
16948994
Correspondence name and address
SCHWEGMAN LUNDBERG & WOESSNER, P.A.
P.O. BOX 2938
MINNEAPOLIS, MN 55402
Assignment: 5
Reel/Frame:056822/0466   Pages: 8
Recorded: 07/12/2021
Attorney Dkt #:5233.020US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KONDUC, KAMERON WAYNE
Exec Dt:
01/27/2020
2
STOIK, RANDY STEVEN
Exec Dt:
01/27/2020
3
CALLAGHAN, JONATHAN DOUGLAS
Exec Dt:
01/27/2020
Assignee
1
DRECO ENERGY SERVICES ULC
4300 BANKERS HALL WEST
888 - 3RD STREET SW
CALGARY, AB, T2P 5C5, CANADA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11454067
US20210172260
17250576
Correspondence name and address
SCHWEGMAN LUNDBERG & WOESSNER, P.A.
P.O. BOX 2938
MINNEAPOLIS, MN 55402
Assignment: 6
Reel/Frame:060063/0572   Pages: 6
Recorded: 05/13/2022
Attorney Dkt #:5233.052US1
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE NAME PREVIOUSLY RECORDED AT REEL: 042379 FRAME: 0738. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT .
Assignors
1
KONDUC, KAMERON WAYNE
Exec Dt:
04/18/2022
2
STOIK, RANDY STEVEN
Exec Dt:
04/18/2022
3
KONOWALEC, ROMAN
Exec Dt:
04/19/2022
4
CALLAGHAN, JONATHON DOUGLAS
Exec Dt:
04/18/2022
5
LIU, LI
Exec Dt:
04/18/2022
6
CHALUS, DAVID FREDERICK
Exec Dt:
04/18/2022
Assignee
1
DRECO ENERGY SERVICES ULC
4300 BANKERS HALL WEST
888 3RD. STREET SW
CALGARY, AB, T2P 5CD, CANADA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10822924
US20170254181
15451968
Correspondence name and address
SCHWEGMAN LUNDBERG & WOESSNER, P.A.
P.O. BOX 2938
MINNEAPOLIS, MN 55402
Assignment: 7
Reel/Frame:060063/0615   Pages: 5
Recorded: 05/13/2022
Attorney Dkt #:5233.052US2
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE TO "DRECO ENERGY SERVICES ULC" WHICH WAS INCORRECTLY FILED AS "NATIONAL OILWELL VARCO, L.P." PREVIOUSLY RECORDED AT REEL: 054151 FRAME: 0602. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Assignors
1
KONDUC, KAMERON WAYNE
Exec Dt:
04/18/2022
2
STOIK, RANDY STEVEN
Exec Dt:
04/18/2022
3
KONOWALEC, ROMAN
Exec Dt:
04/19/2022
4
CALLAGHAN, JONATHON DOUGLAS
Exec Dt:
04/18/2022
5
LIU, LI
Exec Dt:
04/18/2022
6
CHALUS, DAVID FREDERICK
Exec Dt:
04/18/2022
Assignee
1
DRECO ENERGY SERVICES ULC
4300 BANKERS HALL WEST
888 3RD. STREET SW
CALGARY, AB, T2P 5CD, CANADA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11549337
US20210025263
16948994
Correspondence name and address
SCHWEGMAN LUNDBERG & WOESSNER, P.A.
P.O. BOX 2938
MINNEAPOLIS, MN 55402

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