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LOFFLAND BROTHERS COMPANY
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TULSA, OK, US
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Patents Grants
last 30 patents
Information
Patent Grant
Multiple biscuit clutch or brake with circulated immersion cooling
Patent number
4,566,579
Issue date
Jan 28, 1986
Loffland Brothers Company
Earl R. Johnson
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Elevating catwalk
Patent number
4,365,692
Issue date
Dec 28, 1982
Loffland Brothers Company
Gary W. Craig
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Device for reduction of oxygen content in drilling fluid
Patent number
4,350,505
Issue date
Sep 21, 1982
Loffland Brothers Company
Harvey E. Mallory
E21 - EARTH DRILLING MINING
Information
Patent Grant
Multiple biscuit clutch or brake
Patent number
4,335,808
Issue date
Jun 22, 1982
Loffland Brothers Company
Earl R. Johnson
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Rotary drive disc brake for drawworks
Patent number
4,226,311
Issue date
Oct 7, 1980
Loffland Brothers Company
Earl R. Johnson
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hydraulic elevating ramp
Patent number
4,203,575
Issue date
May 20, 1980
Loffland Brothers Company
Earl R. Johnson
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Igniter for oil and/or gas well drilling operation
Patent number
4,184,838
Issue date
Jan 22, 1980
Loffland Brothers Company
Kenneth L. Burns
E21 - EARTH DRILLING MINING
Information
Patent Grant
Braking system for cable spooling drums
Patent number
4,168,768
Issue date
Sep 25, 1979
Loffland Brothers
Earl R. Johnson
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Rotary drive disc brake for drawworks
Patent number
4,144,953
Issue date
Mar 20, 1979
Loffland Brothers Company
Earl R. Johnson
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and means for reduction of oxygen content in drilling fluid
Patent number
4,136,747
Issue date
Jan 30, 1979
Loffland Brothers Company
Harvey E. Mallory
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73402732 - WE GO THE EXTRA MILE
Serial number
73402732
Registration number
1269499
Filing date
Nov 15, 1982
Loffland Brothers Company
42 - Scientific and technological services and research and design relating thereto
Information
Trademark
73373115 - WE DRILL THE WORLD
Serial number
73373115
Registration number
1241702
Filing date
Jul 6, 1982
Loffland Brothers Company
42 - Scientific and technological services and research and design relating thereto
Information
Trademark
73373376 - LBC
Serial number
73373376
Registration number
1241630
Filing date
Jul 6, 1982
Loffland Brothers Company
42 - Scientific and technological services and research and design relating thereto
Information
Trademark
73324316 - OCEAN MASTER
Serial number
73324316
Filing date
Aug 19, 1981
Loffland Brothers Company
42 - Scientific and technological services and research and design relating thereto
Information
Trademark
73321579 - SEA QUEST
Serial number
73321579
Registration number
1214445
Filing date
Jul 31, 1981
Loffland Brothers Company
42 - Scientific and technological services and research and design relating thereto
Information
Trademark
73298689 - LOFFLAND
Serial number
73298689
Registration number
1206585
Filing date
Feb 25, 1981
Loffland Brothers Company
42 - Scientific and technological services and research and design relating thereto
Information
Trademark
73258513 - A COMMITMENT TO EXCELLENCE-LOFFLAND BROTHERS COMPANY
Serial number
73258513
Registration number
1202349
Filing date
Apr 17, 1980
Loffland Brothers Company
42 - Scientific and technological services and research and design relating thereto
Information
Trademark
72218203 - DRILLING IS OUR BUSINESS WORLD-WIDE
Serial number
72218203
Registration number
803440
Filing date
May 6, 1965
LOFFLAND BROTHERS COMPANY
16 - Paper, cardboard and goods made from these materials, not included in other classes
Information
Trademark
72218204 - DRILLING IS OUR BUSINESS WORLD-WIDE
Serial number
72218204
Registration number
803441
Filing date
May 6, 1965
LOFFLAND BROTHERS COMPANY
16 - Paper, cardboard and goods made from these materials, not included in other classes
Information
Trademark
72036969 - DRILLING IS OUR BUSINESS WORLD WIDE
Serial number
72036969
Registration number
676813
Filing date
Sep 10, 1957
LOFFLAND BROTHERS COMPANY
16 - Paper, cardboard and goods made from these materials, not included in other classes
Information
Trademark
72036970 - LOFFLAND BROTHERS CO. DRILLING WORLD WIDE
Serial number
72036970
Registration number
665758
Filing date
Sep 10, 1957
LOFFLAND BROTHERS COMPANY
16 - Paper, cardboard and goods made from these materials, not included in other classes
Information
Trademark
72036966 - DRILLING IS OUR BUSINESS WORLD WIDE
Serial number
72036966
Registration number
699196
Filing date
Sep 10, 1957
LOFFLAND BROTHERS COMPANY
37 - Building construction
Information
Trademark
72036967 - DRILLING IS OUR BUSINESS ... WORLD WIDE
Serial number
72036967
Registration number
691452
Filing date
Sep 10, 1957
LOFFLAND BROTHERS COMPANY
42 - Scientific and technological services and research and design relating thereto
Information
Trademark
72036968 - DRILLING IS OUR BUSINESS WORLD WIDE
Serial number
72036968
Registration number
670787
Filing date
Sep 10, 1957
LOFFLAND BROTHERS COMPANY
16 - Paper, cardboard and goods made from these materials, not included in other classes
Information
Trademark
72036971 - LOFFLAND BROTHERS CO. DRILLING WORLD WIDE
Serial number
72036971
Registration number
666699
Filing date
Sep 10, 1957
LOFFLAND BROTHERS COMPANY
37 - Building construction