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: 6
Patent #:
4493336
Issue Dt:
01/15/1985
Application #:
06412131
Filing Dt:
08/27/1982
Inventor:
WESLEY E. RENFRO
Title:
HYDRAULIC CHOKING DEVICE
Assignment: 1
Reel/Frame:
005377/0241Recorded: 06/28/1990Pages: 19
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
COOPER INDUSTRIES, INC.
Exec Dt:
05/22/1990
Assignee:
VARCO INTERNATIONAL, INC., A CORP. OF CA
743 NORTH ECKHOFF ST.
ORANGE,, CALIFORNIA 92668
Correspondent:
WILLIAM P. GREEN
NILSSON, ROBBINS, DALGARN, ET AL.
201 NORTH FIGUEROA ST., 5TH FLR.
LOS ANGELES, CA 90012-2628
Assignment: 2
Reel/Frame:
005377/0260Recorded: 06/28/1990Pages: 19
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
VARCO INTERNATIONAL, INC.
Exec Dt:
05/22/1990
Assignee:
MARTIN-DECKER, INC., A CORP. OF TX
1200 CYPRESS CREEK,
CEDAR PARK,, TEXAS
Correspondent:
WILLIAM P. GREEN
201 NORTH FIGUEROA ST., 5TH FLR.
LOS ANGELES, CA 90012-2628
Assignment: 3
Reel/Frame:
005829/0095Recorded: 08/26/1991Pages: 26
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE ON 03/04/1991
Assignor:
MARTIN-DECKER, INC.
Exec Dt:
02/20/1991
Assignee:
MARTIN-DECKER TOTCO, INC.
Correspondent:
WILLAM P. GREEN
201 NORTH FIGUEROA STREET
5TH FLOOR
LOS ANGELES, CA 90012-2628
Assignment: 4
Reel/Frame:
005695/0081Recorded: 05/02/1991Pages: 20
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
MARTIN-DECKER TOTCO, INC. A CORP. OF TEXAS
Exec Dt:
04/23/1991
Assignee:
VARCO INTERNATIONAL, INC. A CORP. OF CALIFORNIA
743 NORTH ECKHOFF STREET
ORANGE, CALIFORNIA 92668
Correspondent:
WILLIAM P. GREEN
201 NORTH FIGUEROA STREET
5TH FLOOR
LOS ANGELES, CA 90012-2628
Assignment: 5
Reel/Frame:
005828/0122Recorded: 08/26/1991Pages: 4
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
VARCO INTERNATIONAL, INC. A CORP. OF CALIFORNIA
Exec Dt:
08/15/1991
Assignee:
COOPER INDUSTRIES, INC. A CORP. OF OHIO
SUITE 4000
1001 FANNIN
HOUSTON, TEXAS 77002
Correspondent:
JACKIE LEE DUKE
COOPER INDUSTRIES
P.O. BOX 4446
HOUSTON, TEXAS 77210
Assignment: 6
Reel/Frame:
007462/0622Recorded: 05/05/1995Pages: 38
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
COOPER INDUSTRIES, INC.
Exec Dt:
04/17/1995
Assignee:
COOPER CAMERON CORPORATION
SUITE 1200
515 POST OAK BOULEVARD
HOUSTON, TEXAS 77027
Correspondent:
COOPER INDUSTRIES, INC.
RHONDA J. SMITH
1001 FANNIN, SUITE 4000
HOUSTON, TEXAS 77002

Search Results as of: 08/12/2025 09:29 PM
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