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 Assignor Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Assignor Name : DRESSER INDUSTRIES, INC.,
Total Assignments: 4
Assignment: 1
Reel/Frame:004346/0737   Pages: 1
Recorded: 01/02/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
DRESSER INDUSTRIES, INC.,
Exec Dt:
11/20/1984
Assignee
1
MAGNA CORPORATION, A CORP OF CA
7505 FANNIN SUITE 600
HOUSTON, TEXAS 77054
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4091868
NONE
05775332
Correspondence name and address
PRAVEL GAMBRELL HEWITT & KIMBALL
1177 WEST LOOP SOUTH
TENTH FLOOR
HOUSTON TX 77027
Assignment: 2
Reel/Frame:004475/0047   Pages: 2
Recorded: 10/18/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
DRESSER INDUSTRIES, INC.,
Exec Dt:
09/30/1985
Assignee
1
HADADY CORPORATION, 17506 CHICAGO AVENUE, LANSING, IL. 60438, A CORP. OF DE.
DELAWARE
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
3405811
NONE
04493383
 
3373793
NONE
04546992
 
3499545
NONE
04686600
 
3506139
NONE
04703375
 
3678442
NONE
05134489
 
4064998
NONE
05627638
 
4022329
NONE
05649890
 
4081083
NONE
05720190
Correspondence name and address
COOK, WETZEL AND EGAN, LTD.
135 LA SALLE STREET, SUITE 3300
CHICAGO, IL. 60603
Assignment: 3
Reel/Frame:004680/0403   Pages: 7
Recorded: 02/24/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
DRESSER INDUSTRIES, INC.,
Exec Dt:
12/11/1986
Assignee
1
MI DRILLING FLUIDS COMPANY, HOUSTON, TX. A TX. GENERAL PARTNERSHIP
TEXAS
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
3506572
NONE
04552700
 
3499491
NONE
04741198
 
3658701
NONE
04783176
 
3559609
NONE
04787584
 
3568619
NONE
04802666
 
3639233
NONE
04808344
 
3613456
NONE
04844781
 
3670880
NONE
05061881
 
3784579
NONE
05234381
 
3852202
NONE
05298966
 
3956140
NONE
05355153
 
3878111
NONE
05385355
 
4012328
NONE
05554881
 
4139462
NONE
05704267
 
4137367
NONE
05772380
 
4091868
NONE
05775332
 
4208285
NONE
05953152
 
4260498
NONE
05953239
 
4233366
NONE
05954389
 
4201679
NONE
05957622
 
4220585
NONE
06027189
 
4337160
NONE
06153105
 
4471097
NONE
06338543
 
4525562
NONE
06501900
 
4579927
NONE
06536463
 
4521578
NONE
06536464
 
4544756
NONE
06552641
 
4596662
NONE
06620214
 
4710586
NONE
06661639
 
4595736
NONE
06687438
 
4615841
NONE
06727055
 
4619052
NONE
06745180
 
4740319
NONE
06828621
 
4713183
NONE
06838975
 
4637883
NONE
06848559
 
3522174
NONE
UNAVAILABLE
 
4034219
NONE
UNAVAILABLE
Correspondence name and address
DRESSER INDUSTRIES, INC.
P.O. BOX 718
DALLAS, TX. 75221
Assignment: 4
Reel/Frame:004808/0456   Pages: 2
Recorded: 12/17/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
DRESSER INDUSTRIES, INC.,
Exec Dt:
12/08/1987
Assignee
1
CARBO CERAMICS INC.
600 EAST LAS COLINAS BOULEVARD, SUITE 1520
BOX 159
IRVING, TEXAS 75039
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4440866
NONE
06437321
Correspondence name and address
GAMBRELL, HEWITT, KIMBALL & KRIEGER
TENTH FLOOR
1177 WEST LOOP SOUTH
HOUSTON, TX 77027-9095

Search Results as of: 09/24/2024 06:53 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