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Patent Assignment Assignor Details
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Assignor Name : PURKIS, DANIEL
Total Assignments: 24
Assignment: 1
Reel/Frame:010002/0494   Pages: 4
Recorded: 06/08/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GISSLER, ROBERT W.
Exec Dt:
05/24/1999
2
HOLCOMBE, MICHAEL W.
Exec Dt:
05/24/1999
3
PURKIS, DANIEL
Exec Dt:
05/24/1999
Assignee
1
PES, INC.
RICHARD P. RUBBO
445 WOODLINE DR.
SPRING, TEXAS 77386
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6273189
NONE
09245468
Correspondence name and address
TIMOTHY M. HONEYCUTT
P.O. BOX 1577
CYPRESS, TEXAS 77410-1577
Assignment: 2
Reel/Frame:010004/0729   Pages: 13
Recorded: 06/08/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BOULDIN, BRETT
Exec Dt:
05/17/1999
2
RUBBO, RICHARD
Exec Dt:
05/26/1999
3
SIMPSON, HENRY
Exec Dt:
05/24/1999
4
OWENS, STEVE
Exec Dt:
05/17/1999
5
ARIZMENDI, NAPOLEON
Exec Dt:
05/17/1999
6
BROWN, IRVINE
Exec Dt:
05/19/1999
7
REID, MICHAEL
Exec Dt:
05/19/1999
8
PURKIS, DANIEL
Exec Dt:
05/24/1999
Assignee
1
PES, INC.
RICHARD P. RUBBO
445 WOODLINE DR.
SPRING, TEXAS 77386
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
6109355
NONE
09121406
 
6179052
NONE
09133747
Correspondence name and address
PES, INC.
BRETT BOULDIN
445 WOODLINE DR.
SPRING, TEXAS 77386
Assignment: 3
Reel/Frame:019338/0457   Pages: 3
Recorded: 05/09/2007
Attorney Dkt #:36290-0471-00-US(403527)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PURKIS, DANIEL
Exec Dt:
05/07/2007
2
MACLEOD, IAIN MORRISON
Exec Dt:
05/02/2007
Assignee
1
PETROWELL LIMITED
NEWTON ROAD
KIRKHILL INDUSTRIAL ESTATE
DYCE, ABERDEEN B21 0GE, UNITED KINGDOM
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9115573
US20070285275
11667516
Correspondence name and address
ROBERT E. CANNUSCIO, ESQ.
DRINKER BIDDLE & REATH LLP
ONE LOGAN SQUARE
18TH & CHERRY STREETS
PHILADELPHIA, PA 19103-6996
Assignment: 4
Reel/Frame:033136/0549   Pages: 3
Recorded: 06/19/2014
Attorney Dkt #:200346-0471-01-US-510562
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PURKIS, DANIEL
Exec Dt:
05/07/2007
2
MACLEOD, IAIN MORRISON
Exec Dt:
05/02/2007
Assignee
1
PETROWELL LIMITED
WEATHERFORD CENTRE SOUTERHEAD ROAD
ALTENS INDUSTRIAL ESTATE
ABERDEEN, UNITED KINGDOM AG12 3LF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10262168
US20140306853
14308336
Correspondence name and address
ROBERT E. CANNUSCIO
ONE LOGAN SQUARE
SUITE 2000
PHILADELPHIA, PA 19103
Assignment: 5
Reel/Frame:019916/0768   Pages: 3
Recorded: 10/03/2007
Attorney Dkt #:PETR102
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PURKIS, DANIEL
Exec Dt:
05/15/2007
Assignee
1
PETROWELL LIMITED
KIRKTON AVENUE
PITMEDDEN ROAD INDUSTRIAL ESTATE, DYCE
ABERDEEN, UNITED KINGDOM AB21 0BF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8490691
US20090114401
11577866
Correspondence name and address
STEPHEN M. NIPPER
PO BOX 877
BOISE, ID 83701
Assignment: 6
Reel/Frame:026678/0361   Pages: 3
Recorded: 08/01/2011
Attorney Dkt #:1158-014
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PURKIS, DANIEL
Exec Dt:
05/15/2007
Assignee
1
PETROWELL LIMITED
KIRKTON AVENUE, PITMEDDEN ROAD INDUSTRIAL ESTATE
DYCE
ABERDEEN, UNITED KINGDOM AB21 0BF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8973666
US20110277986
13189758
Correspondence name and address
STEPHEN M. NIPPER
PO BOX 700
PERRYSBURG, OH 43552
Assignment: 7
Reel/Frame:019553/0388   Pages: 3
Recorded: 07/06/2007
Attorney Dkt #:36290-0496-00-US(406989)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PURKIS, DANIEL
Exec Dt:
06/25/2007
Assignee
1
PETROWELL LIMITED
KIRKTON AVENUE
PITMEDDEN ROAD INDUSTRIAL ESTATE
DYCE, ABERDEEN, AB21 OBF, UNITED KINGDOM
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7798208
US20080245534
11794847
Correspondence name and address
ROBERT E. CANNUSCIO, ESQ.
DRINKER BIDDLE & REATH LLP
ONE LOGAN SQUARE
18TH & CHERRY STREETS
PHILADELPHIA, PA 19103-6996
Assignment: 8
Reel/Frame:019553/0569   Pages: 3
Recorded: 07/06/2007
Attorney Dkt #:36290-0497-00-us(407005)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PURKIS, DANIEL
Exec Dt:
06/25/2007
2
MACLEOD, IAIN
Exec Dt:
06/25/2007
3
REID, STEPHEN
Exec Dt:
06/25/2007
Assignee
1
PETROWELL LIMITED
KIRKTON AVENUE
PITMEDDEN ROAD INDUSTRIAL ESTATE
DYCE, ABERDEEN AB21 OBF, UNITED KINGDOM
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20080128168
11794845
Correspondence name and address
DRINKER BIDDLE & REATH LLP
ROBERT E. CANNUSCIO, ESQ.
ONE LOGAN SQUARE
18TH & CHERRY STREETS
PHILADELPHIA, PA 19103-6996
Assignment: 9
Reel/Frame:020272/0901   Pages: 3
Recorded: 12/10/2007
Attorney Dkt #:36290-0516-00-US(412326)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PURKIS, DANIEL
Exec Dt:
11/09/2007
Assignee
1
PETROWELL LIMITED
KIRKTON AVENUE, PITMEDDEN ROAD
INDUSTRIAL ESTATE DYCE
ABERDEEN AB21 0BF, UNITED KINGDOM
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7975767
US20090065214
11919962
Correspondence name and address
ROBERT E. CANNUSCIO, ESQ.
DRINKER BIDDLE & REATH LLP
ONE LOGAN SQUARE
18TH & CHERRY STREETS
PHILADELPHIA, PA 19103-6996
Assignment: 10
Reel/Frame:021430/0237   Pages: 3
Recorded: 08/08/2008
Attorney Dkt #:36290-0586-00-us (425738)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PURKIS, DANIEL
Exec Dt:
07/24/2008
Assignee
1
PETROWELL LIMITED
KIRKTON AVENUE
PITMEDDEN ROAD, INDUSTRIAL ESTATE DYCE
ABERDEEN, AB21 OBF, UNITED KINGDOM
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20090044937
12221999
Correspondence name and address
ROBERT E. CANNUSCIO, ESQ.
DRINKER BIDDLE & REATH LLP
ONE LOGAN SQUARE
18TH & CHERRY STREETS
PHILADELPHIA, PA 19103-6996
Assignment: 11
Reel/Frame:021746/0027   Pages: 3
Recorded: 10/22/2008
Attorney Dkt #:36290-0600-00-US (429883)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PURKIS, DANIEL
Exec Dt:
10/20/2008
Assignee
1
PETROWELL LIMITED
KIRKTON AVENUE
PITMEDDEN ROAD INDUSTRIAL ESTATE
DYCE, ABERDEEN, UNITED KINGDOM AB21 OBF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8191570
US20090230340
12226577
Correspondence name and address
ROBERT E. CANNUSCIO, ESQ.
DRINKER BIDDLE & REATH LLP
ONE LOGAN SQUARE
18TH & CHERRY STREETS
PHILADELPHIA, PA 19103-6996
Assignment: 12
Reel/Frame:024291/0440   Pages: 6
Recorded: 04/26/2010
Attorney Dkt #:51026-PO12WOUS
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PURKIS, DANIEL
Exec Dt:
04/09/2010
Assignee
1
PETROWELL LIMITED
KIRKTON AVENUE
PITMEDDEN ROAD INDUSTRIAL ESTATE DYCE
ABERDEEN, ABERDEENSHIRE, UNITED KINGDOM AB21 OBF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8833469
US20100200244
12677660
Correspondence name and address
ROSS T. ROBINSON
WINSTEAD PC
P.O. BOX 50784
DALLAS, TX 75201
Assignment: 13
Reel/Frame:024291/0456   Pages: 4
Recorded: 04/26/2010
Attorney Dkt #:51026-POO5WOUS
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PURKIS, DANIEL
Exec Dt:
04/09/2010
Assignee
1
PETROWELL LIMITED
KIRKTON AVENUE
PITMEDDEN ROAD INDUSTRIAL ESTATE DYCE
ABERDEEN, ABERDEENSHIRE, UNITED KINGDOM AB21 OBF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20100200243
12677443
Correspondence name and address
ROSS T. ROBINSON
WINSTEAD PC
P.O. BOX 50784
DALLAS, TX 75201
Assignment: 14
Reel/Frame:031417/0226   Pages: 4
Recorded: 10/16/2013
Attorney Dkt #:51026-P012WUSC1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PURKIS, DANIEL
Exec Dt:
04/09/2010
Assignee
1
PETROWELL LIMITED
WEATHERFORD CENTRE, SOUTERHEAD ROAD
ALTENS INDUSTRIAL ESTATE
ABERDEEN, UNITED KINGDOM AB12 3LF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9085954
US20140034291
14048796
Correspondence name and address
WINSTEAD PC
P.O. BOX 131851
DALLAS, TX 75313
Assignment: 15
Reel/Frame:025136/0768   Pages: 5
Recorded: 10/14/2010
Attorney Dkt #:51026-P037WOUS
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PURKIS, DANIEL
Exec Dt:
09/21/2010
Assignee
1
PETROWELL LIMITED
KIRKTON AVENUE
PITMEDDEN ROAD INDUSTRIAL ESTATE, DYCE
ABERDEEN, ABERDEENSHIRE, UNITED KINGDOM AB21 0BF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9103197
US20110248566
12866822
Correspondence name and address
ROSS T. ROBINSON
WINSTEAD PC
P.O. BOX 50784
DALLAS, TX 75201
Assignment: 16
Reel/Frame:036141/0401   Pages: 5
Recorded: 07/21/2015
Attorney Dkt #:51026-P037WUSC1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PURKIS, DANIEL
Exec Dt:
09/21/2010
Assignee
1
PETROWELL LIMITED
KIRKTON AVENUE
PITMEDDEN ROAD INDUSTRIAL ESTATE
ABERDEEN, UNITED KINGDOM AB21 0BF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9631458
US20150322748
14802402
Correspondence name and address
WINSTEAD PC
P.O. BOX 131851
DALLAS, TX 75313
Assignment: 17
Reel/Frame:041651/0092   Pages: 6
Recorded: 02/07/2017
Attorney Dkt #:WFT-5609-PCT-US-DV1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PURKIS, DANIEL
Exec Dt:
09/21/2010
Assignee
1
PETROWELL LIMITED
KIRKTON AVENUE
PITMEDDON ROAD INDUSTRIAL ESTATE
ABERDEEN, UNITED KINGDOM AB21 0BF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10041335
US20170145791
15426512
Correspondence name and address
SMITH IP SERVICES, P.C.
P.O. BOX 997
ROCKWALL, TX 75087
Assignment: 18
Reel/Frame:026352/0313   Pages: 2
Recorded: 05/27/2011
Attorney Dkt #:1158-013
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PURKIS, DANIEL
Exec Dt:
04/18/2011
Assignee
1
PETROWELL LIMITED
KIRKTON AVENUE, PITMEDDEN ROAD INDUSTRIAL ESTATE
DYCE, ABERDEEN, UNITED KINGDOM AB21 0BF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8950503
US20110290504
13122186
Correspondence name and address
STEPHEN M. NIPPER
P.O. BOX 700
PERRYSBURG, OH 43552
Assignment: 19
Reel/Frame:026805/0235   Pages: 3
Recorded: 08/25/2011
Attorney Dkt #:1158-006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PURKIS, DANIEL
Exec Dt:
08/18/2011
Assignee
1
PETROWELL LIMITED
KIRKTON AVENUE, PITMEDDEN ROAD INDUSTRIAL ESTATE
DYCE, ABERDEEN, UNITED KINGDOM AB21 0BF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8839872
US20100170681
12514488
Correspondence name and address
STEPHEN M. NIPPER
PO BOX 700
PERRYSBURG, OH 43552
Assignment: 20
Reel/Frame:027779/0917   Pages: 5
Recorded: 02/29/2012
Attorney Dkt #:51026-P151WOUS
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PURKIS, DANIEL
Exec Dt:
02/23/2012
Assignee
1
PETROWELL LIMITED
KIRKTON AVENUE
PITMEDDEN ROAD INDUSTRIAL ESTATE DYCE
ABERDEEN, ABERDEENSHIRE, UNITED KINGDOM AB21 OBF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9488046
US20120146806
13389630
Correspondence name and address
ROSS T. ROBINSON
WINSTEAD PC
P.O. BOX 131851
DALLAS, TX 75313
Assignment: 21
Reel/Frame:033960/0158   Pages: 6
Recorded: 10/16/2014
Attorney Dkt #:WEAT/1129US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GIROUX, RICHARD LEE
Exec Dt:
06/09/2014
2
PURKIS, DANIEL
Exec Dt:
10/14/2014
3
DALZELL, RICHARD
Exec Dt:
06/11/2014
4
DUTHIE, JASON
Exec Dt:
06/11/2014
5
JAFFREY, IAN
Exec Dt:
06/12/2014
Assignee
1
WEATHERFORD/LAMB, INC.
2000 ST. JAMES PLACE
HOUSTON, TEXAS 77056
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10087725
US20140305662
14250162
Correspondence name and address
WILLIAM B. PATTERSON
24 GREENWAY PLAZA, SUITE 1600
HOUSTON, TX 77046
Assignment: 22
Reel/Frame:046793/0177   Pages: 6
Recorded: 09/05/2018
Attorney Dkt #:WEAT/1129USD01 ASG-1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GIROUX, RICHARD LEE
Exec Dt:
06/09/2014
2
PURKIS, DANIEL
Exec Dt:
10/14/2014
3
DALZELL, RICHARD
Exec Dt:
06/11/2014
4
DUTHIE, JASON
Exec Dt:
06/11/2014
5
JAFFREY, IAN
Exec Dt:
06/12/2014
Assignee
1
WEATHERFORD/LAMB, INC.
2000 ST. JAMES PLACE
HOUSTON, TEXAS 77056
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10808508
US20190032456
16122273
Correspondence name and address
WILLIAM B. PATTERSON
24 GREENWAY PLAZA, SUITE 1600
HOUSTON, TX 77046
Assignment: 23
Reel/Frame:037246/0672   Pages: 3
Recorded: 12/09/2015
Attorney Dkt #:200346-0601-00-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PURKIS, DANIEL
Exec Dt:
03/20/2015
Assignee
1
PETROWELL LIMITED
WEATHERFORD CENTRE SOUTERHEAD ROAD
ALTENS INDUSTRIAL ESTATE
ABERDEEN, UNITED KINGDOM AG123LF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10428621
US20160123112
14896568
Correspondence name and address
DRINKER BIDDLE & REATH LLP
ONE LOGAN SQUARE
SUITE 2000
PHILADELPHIA, PA 19103
Assignment: 24
Reel/Frame:047092/0916   Pages: 4
Recorded: 10/08/2018
Attorney Dkt #:1354Y-000050-US-NP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
PURKIS, DANIEL
Exec Dt:
08/20/2018
Assignee
1
WELL-SENSE TECHNOLOGY LIMITED
WELLHEADS CRESCENT, WELLHEADS INDUSTRIAL ESTATE, DYCE
ABERDEEN, UNITED KINGDOM AB21 7GA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20190010803
15745151
Correspondence name and address
HARNESS, DICKEY & PIERCE, P.L.C.
P.O. BOX 8910
RESTON, VA 20195

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