THERMA DRIVE
Filed: June 10, 1965
UNITS FOR HEATING SUBTERRANEAN EARTH FORMATIONS
Owned by: NATIONAL TANK COMPANY
Serial Number: 72220872
TRIHIBITOL
Filed: April 9, 1979
Natural Gas Dehydration Fluid
Owned by: NATIONAL TANK COMPANY
Serial Number: 73211010
FUEL MIZER
Filed: November 29, 1982
FIRE TUBE COMBUSTION UNIT
Owned by: NATIONAL TANK COMPANY
Serial Number: 73404176
OPTISOL
Filed: February 9, 1984
SYSTEM FOR THE REMOVAL OF CONTAMINANTS FROM GAS MIXTURES WITH AMINES, COMPRISING A REBOILER, STILL, REFLUX ACCUMULATOR,…
Owned by: NATIONAL TANK COMPANY
Serial Number: 73464974
TRU-ACT
Filed: April 26, 1984
Level Controls for Fluid Materials
Owned by: NATIONAL TANK COMPANY
Serial Number: 73477504
ELECTROMAX
Filed: July 29, 1985
OILFIELD MACHINES, NAMELY CRUDE OIL TREATERS
Owned by: NATIONAL TANK COMPANY
Serial Number: 73550841
EPC
Filed: January 2, 1991
solvent extraction systems; namely, electrostatic phase dispenser filters and coalescers for use in water purification
Owned by: NATIONAL TANK COMPANY
Serial Number: 74127498
LTX
Filed: January 2, 1991
high pressure power operated separators for extracting hydrocarbon liquids and water from gas
Owned by: NATIONAL TANK COMPANY
Serial Number: 74127935
ENVIROMAX
Filed: October 16, 1991
coalescer for separating oil from storm water for treating groundwater run-off
Owned by: NATIONAL TANK COMPANY
Serial Number: 74213426
DFX
Filed: November 1, 1991
filtering units for large process liquid streams utilizing granular media for industrial use
Owned by: NATIONAL TANK COMPANY
Serial Number: 74218125
HRU
Filed: November 1, 1991
hydrocarbon recovery unit for removal of water and recovery of liquids from gas streams
Owned by: NATIONAL TANK COMPANY
Serial Number: 74218149
HYDRALERT
Filed: January 9, 1992
monitors for measuring concentrations of oil, grease, and other hydrocarbons, particulates and turbidity in a water stream…
Owned by: NATIONAL TANK COMPANY
Serial Number: 74236410
OSX
Filed: January 30, 1992
granular bed coalescer and separator for dispersed oil extraction
Owned by: NATIONAL TANK COMPANY
Serial Number: 74241733
SPX
Filed: January 30, 1992
combination coalescer and separator for suspended oil extraction
Owned by: NATIONAL TANK COMPANY
Serial Number: 74241787
EPIC
Filed: January 9, 1995
electrically pulsed high energy emulsion breakers
Owned by: NATIONAL TANK COMPANY
Serial Number: 74618921
GRVC
Filed: June 30, 1997
vapor recovery units used with natural gas dehydrators
Owned by: NATIONAL TANK COMPANY
Serial Number: 75316873
JEWEL T
Filed: November 29, 1999
HYDROCARBON DEW POINT CONTROL SYSTEM, COMPRISING GAS/HEAT EXCHANGERS, EXPANSION VALVES AND CHOKES, AND COLD SEPARATORS FOR…
Owned by: NATIONAL TANK COMPANY
Serial Number: 75859823
MOZLEY
SEPARATION EQUIPMENT TO REMOVE SAND AND OTHER SOLID PARTICLES FROM MULTI-PHASE WELLSTREAMS
Owned by: NATIONAL TANK COMPANY
Serial Number: 85159251
