skip navigationU S P T O SealUnited States Patent and Trademark Office AOTW logo
Home|Site Index|Search|Guides|Contacts|eBusiness|eBiz alerts|News|Help
Assignments on the Web > Patent Query
Patent Assignment Abstract of Title
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Total Assignments: 2
Patent #:
5829539
Issue Dt:
11/03/1998
Application #:
08800156
Filing Dt:
02/13/1997
Inventors:
ALEX NEWTON, JOHN DEANE, DOUGLAS CARAWAY, ANDREW MURDOCK, MICHAEL BARNES, HAYDN LAMB
Title:
ROTARY DRILL BIT WITH HARDFACED FLUID PASSAGES AND METHOD OF MANUFACTURING
Assignment: 1
Reel/Frame:
008515/0321Recorded: 05/19/1997Pages: 5
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
NEWTON, ALEX
Exec Dt:
04/30/1997
DEANE, JOHN
Exec Dt:
04/25/1997
CARAWAY, DOUGLAS
Exec Dt:
04/25/1997
MURDOCK, ANDREW
Exec Dt:
04/16/1997
BARNES, MICHAEL
Exec Dt:
04/16/1997
LAMB, HAYDN
Exec Dt:
04/16/1997
Assignee:
CAMCO DRILLING GROUP LTD. OF HYCALOG
LANE INDUSTRIAL ESTATE
STONEHOUSE, GLOUCESTERSHIRE, ENGLAND
Correspondent:
CAMCO INTERNATIONAL INC.
SCOTT H. BROWN
P.O. BOX 14484
7030 ARDMORE
HOUSTON, TX 77221
Assignment: 2
Reel/Frame:
015370/0384Recorded: 11/08/2004Pages: 4
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
CAMCO DRILLING GROUP LIMITED
Exec Dt:
10/11/2004
Assignee:
REEDHYCALOG UK LIMITED
OLDENDS LANE INDUSTRIAL ESTATE
STONEHOUSE GLOS, UNITED KINGDOM GL10 3RQ
Correspondent:
GRANT PRIDECO, L.P.
JEFFREY E. DALY
400 NO. SAM HOUSTON PKWY E.
SUITE 900
HOUSTON, TX 77060

Search Results as of: 05/02/2024 08:36 AM
If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6
Web interface last modified: August 25, 2017 v.2.6
| .HOME | INDEX| SEARCH | eBUSINESS | CONTACT US | PRIVACY STATEMENT