CHANDLER ENGINEERING

Live / Registered — Registered (as of 18 Aug 2026)

What this means for you

Registered since 18 Aug 2026. The owner can stop confusingly similar uses in the classes it covers; it stays on the register as long as the owner keeps up the maintenance filings (next due by 18 Aug 2032: the §8 declaration of use).

Record

Serial number
98809555
Registration number
8397764
Mark type
Word mark
Filed
18 Oct 2024
Published for opposition
30 Jun 2026
Registered
18 Aug 2026
Next maintenance filing
§8 declaration of use, due by 18 Aug 2032 (grace period to 18 Feb 2033)
Attorney of record
James F. Lea, III

Goods and services

  • Class 007 — Machines and machine tools: Electric precision pumps for non-medical use, namely, positive displacement syringe pumps with precision flow rate, volume, and pressure control capabilities, featuring pulse-free continuous flow and programmable delivery modes including constant rate, constant pressure, and constant volume, as well as single-cylinder batch operation and pressure control capabilities; scientific instruments, namely, flow loops, namely, fluid circulation systems comprised of progressive cavity pumps being rotary pumps, interchangeable test sections, flow meters, pressure transducers, and temperature-controlled piping; progressive cavity pumps, namely, low-shear, variable-speed rotary pumps; heat exchangers being parts of engines not for land vehicles; heat exchangers being parts of machines; pressure transducers as parts of machines; Electric precision, pulse-free, syringe positive displacement pumps for non-medical use; positive displacement pumps for non-medical use
  • Class 009 — Scientific and electric apparatus: Scientific instruments, namely, Flow loops, namely, fluid circulation systems comprised of progressive cavity pumps being laboratory pumps for fluid testing and analysis, interchangeable test sections, flow meters, pressure transducers, and temperature-controlled piping; electrical pressure transducers; differential pressure sensors; test sections of varying diameters, namely, removable flow tubes for frictional pressure loss and rheology testing all being test tubes; laboratory apparatus in the nature of fluid reservoirs for storing, conditioning, and supplying test fluids; downloadable software for data acquisition and control of fluid circulation systems; Pilot plants, namely, bench-scale units for laboratory use comprised of electrically heated laboratory chemical reactors for use in electronic process control systems that simulate oil and gas and petrochemical processes, as well as for use in chemical, pharmaceutical, renewable energy, and food and beverage applications; laboratory chemical reactors; heat exchangers, namely, laboratory heat exchangers for use in fluid testing and simulation systems; distillation columns for laboratory use; magnetic separators for scientific use; controlled volume pumps, and instrumentation control systems, namely, electronic control panels used for simulating oil and gas and petrochemical processes, as well as being used in chemical, pharmaceutical, renewable energy, and food and beverage applications to simulate oil, gas and petrochemical processes, and in other chemical, pharmaceutical, renewable energy, and food and beverage applications; permeability testers, namely, core plug permeameters for measuring permeability of rock and formation core samples; formation response testers for evaluating the impact of drilling, completion, and stimulation fluids on formation permeability; core flood systems for use in the geological and petroleum industries comprised of core holders for laboratory use, namely, Hassler core holders, hydrostatic core holders, and triaxial core holders; Pumps, namely, laboratory pumps for fluid testing and analysis, including high-pressure controlled volume pumps; electronic pressure transducers; accumulators; piston-type, gas-charged laboratory accumulators; electrical pressure transducers; Downloadable software for fully automated custom data acquisition and control of precision syringe pump systems; pressure-volume-temperature (PVT) cells, namely, high-pressure, high-temperature visual cells, namely, visual PVT cells for determining phase boundaries and thermophysical properties of reservoir fluids under high pressure, high temperature conditions, all being environmental test chambers in the nature of temperature simulation equipment; fluid handling components, namely, valves, manifolds, and high-pressure tubing for directing, isolating, and controlling the flow of test fluids in laboratory fluid circulation and testing systems; gas condensate cells, namely, sapphire window gas condensate cells for visual observation and measurement of phase behavior and retrograde condensation of gas condensate fluids under high pressure, high temperature conditions all being environmental test chambers in the nature of temperature simulation equipment; gasometers for scientific purposes, namely, digital volumetric gas measurement instruments comprised of dual-chamber atmospheric volumetric pumps, floating pistons, rack-and-pinion positioning systems, digital volume meters, and temperature and pressure displays; miscibility testing apparatus, namely, minimum miscibility pressure analyzers for determining the minimum miscibility pressure between injected gas and reservoir oil, comprised of sand-packed slim tubes in the nature of high pressure stainless steel laboratory tubes; high-pressure sample bottles for floating piston cylinders for high pressure fluid transfer, storage, and conditioning of liquid and gas samples in pressure volume temperature (PVT) analysis systems all being laboratory apparatus; sapphire sight glass for visual observation and monitoring of fluid samples and phase changes during high pressure, high temperature testing, all being sapphire sight glasses for scientific observation of fluids; air bath, namely laboratory air bath ovens for temperature-controlled testing; valves, namely, automatic control valves, including electrically controlled and air-operated valves, for regulating fluid flow in laboratory and industrial testing systems; flow meters; tubing, namely, high-pressure tubing for scientific fluid testing systems; downloadable computer-based control software for data acquisition and control of acquired data; rolling ball viscometers, namely, high-pressure, high-temperature viscometers for measuring viscosity of fluids under simulated downhole conditions, comprised of a pressurized test chamber, namely, a high-pressure test cell, magnetic solenoid release mechanism, namely, solenoid valves, steel test ball, digital timer for initiating and timing the movement of a test ball through a fluid sample for viscosity measurement, and fixed-angle rolling guides for guiding and controlling the movement of a test ball through a fluid sample during rolling ball viscosity measurement; phase behavior analyzers for oil and gas applications, namely, high-pressure, high-temperature analytical instruments comprised of visual PVT cells, namely, sapphire window PVT cells all in the nature of scientific apparatus for high-pressure and high-temperature fluid analysis and simulation; gas condensate cells, namely, Gas condensate cells, namely, sapphire window gas condensate PVT cells all in the nature of scientific apparatus for high-pressure and high-temperature fluid analysis and simulation; floating-piston cells, namely, floating piston cylinders all in the nature of laboratory cylinders for containing and controlling pressurized fluids; temperature and pressure control modules, namely, temperature controllers for controlling the temperature of fluids in laboratory and industrial process testing systems and pressure controllers used in pressure volume temperature (PVT) systems for controlling the pressure of liquid, semi-liquid, and gaseous substances in industrial processes; downloadable software for data acquisition and control of pressure-volume-temperature (PVT) phase behavior testing systems; Core flood instruments for use in the geological and petroleum industries, namely, laboratory systems comprised of core holders, namely, Hassler core holders, biaxial core holders, and triaxial core holders; fluid injection pumps, namely, controlled volume syringe pumps; electrical differential pressure transducers; electric accumulators; temperature-controlled enclosures, namely, laboratory oven enclosures; downloadable software for data acquisition and control of fluid circulation, pressure regulation, and temperature control within core flood system; Rock core centrifuges, namely, laboratory centrifuges for oil and gas core analysis

Owner

Prosecution history

  • 18 Aug 2026 — REGISTERED-PRINCIPAL REGISTER
  • 30 Jun 2026 — OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
  • 30 Jun 2026 — PUBLISHED FOR OPPOSITION
  • 24 Jun 2026 — NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
  • 02 Jun 2026 — APPROVED FOR PUB - PRINCIPAL REGISTER
  • 07 May 2026 — TEAS/EMAIL CORRESPONDENCE ENTERED
  • 07 May 2026 — CORRESPONDENCE RECEIVED IN LAW OFFICE
  • 07 May 2026 — TEAS RESPONSE TO OFFICE ACTION RECEIVED
  • 29 Apr 2026 — NOTIFICATION OF NON-FINAL ACTION E-MAILED
  • 29 Apr 2026 — NON-FINAL ACTION E-MAILED
  • 29 Apr 2026 — NON-FINAL ACTION WRITTEN
  • 23 Mar 2026 — TEAS/EMAIL CORRESPONDENCE ENTERED
  • 23 Mar 2026 — CORRESPONDENCE RECEIVED IN LAW OFFICE
  • 23 Mar 2026 — TEAS RESPONSE TO OFFICE ACTION RECEIVED
  • 09 Dec 2025 — APPLICATION EXTENSION GRANTED/RECEIPT PROVIDED

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