DRILCO
Filed: October 12, 1951
REPAIR, MAINTENANCE, AND SERVICING OF DRILL COLLARS
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 71619927
SERVCO
Filed: May 9, 1960
Drilling and Servicing of Oil Wells and Servicing of Oil Well Tools Including Drill Collars
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 72096749
SERVCO
Filed: May 9, 1960
Oil Well Drilling and Servicing Tools Including [ Drill Collars, Stabilizers, ] Hole Openers, Under Reamers, Rotary Shoes…
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 72096750
CONTROLLED FRICTION
Filed: September 6, 1960
Oil Well Equipment-Namely, Casing Hangers
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 72103942
KNOBBY
Filed: September 16, 1960
Cutters for Rotary Reamers Used in Oil Well Drilling, Particularly Reamers of the Type Using Rollers Having Tungsten Carbide…
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 72104596
SHOCK SUB
Filed: June 7, 1961
Tubular Devices Interposed in Rotary Drill Strings [-] , e.g., Between Drill Bit and Drill Collar, to Cushion Impact and…
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 72121549
SUPER MUDWONDER
Filed: April 21, 1964
GATE VALVES AND PARTS THEREOF
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 72191719
ACCELERATOR
Filed: March 28, 1966
OIL WELL TOOL-NAMELY, A COMBINED TENSILE ENERGY ACCUMULATOR AND SHOCK ABSORBING DEVICE
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 72242011
DI-22
Filed: December 26, 1967
THREADED CONNECTIONS FOR DRILL STEM MEMBERS, USEFUL IN ROTARY BORING OF THE EARTH
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 72287529
HEVI-WATE
Filed: January 17, 1968
DRILL STEM MEMBERS USEFUL IN ROTARY BORING OF THE EARTH
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 72289016
SERVCO-PLATE
Filed: July 7, 1969
DRY FILM LUBRICANT
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 72331837
TORQ-LOK
Filed: October 30, 1970
THREAD LOCKING EPOXY RESIN COMPOSITION
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 72374887
SII SMITH
Filed: December 17, 1971
EARTH DRILLING MACHINES, ATTACHMENTS AND PARTS
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 72410451
GRUNER
Filed: September 1, 1972
ROCK BITS
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 72434784
WEAR-KNOT
Filed: October 20, 1972
DRILL PIPE PROTECTORS USEFUL FOR PREVENTING OUTER SURFACE WEAR AND FAILURE OF DRILL PIPE
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 72438962
BIG BEAR
Filed: December 8, 1972
STABILIZERS FOR DRILL STRINGS FOR DRILLING OIL AND GAS WELLS AND THE LIKE
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 72443177
COPPER LUBE
Filed: August 20, 1973
PIPE AND JOINT THREAD COMPOUND
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 72466140
STA PAK
Filed: June 5, 1975
STABILIZERS FOR DRILL STRINGS FOR DRILLING OIL AND GAS WELLS AND THE LIKE
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73054273
EMCO
Filed: June 5, 1975
SUPERVISION OF DIRECTIONAL DRILLING
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73054274
AYMA-SUB
Filed: July 26, 1976
TUBING CONNECTOR
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73094589
HEVI-WATE
Filed: December 6, 1976
DRILL STEM MEMBERS USEFUL IN ROTARY BORING OF THE EARTH-NAMELY, THICK WALLED DRILL PIPE
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73108720
W
Filed: March 14, 1977
Manual Valves-Namely, Manual Flow Control Valves, Used for the Control and Regulation of Flowing Liquids, Gases and Slurries…
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73119074
A TEAM
Filed: July 18, 1977
WELL DRILLING BITS
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73134173
HYDRA JAR
Filed: September 6, 1977
OIL WELL DRILLING AND FISHING TOOLS
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73140083
MUD CHEK
Filed: April 27, 1978
MUD VALVES FOR OIL WELL RIGS
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73168158
EZY-CHANGE
Filed: April 27, 1978
DRILL STRING STABILIZERS
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73168159
SEE-FLO
Filed: April 27, 1978
DEGASSERS FOR USE IN WELL DRILLING OPERATIONS
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73168203
RWP
Filed: April 27, 1978
DRILL STRING STABILIZERS
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73168204
THE HOG
Filed: January 29, 1979
Tool Bits for Use with Drilling, Excavating and Mining Equipment
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73201724
STIKQUIK
Filed: October 12, 1979
Resin and Catalyst Containing Cartridges for Securing a Roof Bolt in a Roof Bolting System
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73234846
SERVCONEL
Filed: January 11, 1980
Drill Collars Such as Used for Oil and Gas Well Drilling
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73245820
CENTER LINE
Filed: November 20, 1980
Rotary Drill Bits Used for Oil and Gas Well Drilling
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73286671
CENTER LINE
Filed: November 20, 1980
Rotary Drill Bits Used for Oil and Gas Well Drilling
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73286986
SERVCOLOY
Filed: April 6, 1981
Welding and Brazing Rods and Pads for Applying Hard or Cutting Surfaces to Tools
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73304387
DYNA-DRILL
Filed: July 17, 1981
Downhole Drilling Motors
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73319583
DELTA 500
Filed: December 10, 1981
DOWNHOLE DRILLING MOTORS
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73340894
DELTA 1000
Filed: December 10, 1981
DOWNHOLE DRILLING MOTORS
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73340895
SMITH TOOL
Filed: January 25, 1982
Rock Bits and Hole Openers for Drilling Bore Holes in the Earth
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73347082
DELTA 500 PLUS 4
Filed: February 16, 1982
DOWNHOLE DRILLING MOTORS
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73350445
ROAD HOG
Filed: March 8, 1982
Power Tool Bits for Use with Drilling, Excavating and Mining Equipment
Owned by: SMITH INTERNATIONAL, INC.
Serial Number: 73353598
