USPTO trademark record

QTHERM

Live registered mark · Owner Mainstream Engineering Corporation · Classes 1

Mark details

Owner: Mainstream Engineering Corporation
Serial number: 76670554
Registration number: 3534457
Status: REGISTERED AND RENEWED
Classes: 1 (Chemicals)
Filed: 2006-12-19
Registered: 2008-11-18
Goods / services: Heat transfer fluids for industrial use

Register data as of 2026-11-08. Records can trail live filings — check the official USPTO search for the latest status before filing.

Similar marks

Nearest marks in the register to QTHERM.

QTHERMLive

Classes 9 (Software / electronics / downloadable media) · Sierra Instruments, Inc.

Q-THERMDead

Classes 1 (Chemicals) · ANDERSON DEVELOPMENT CO., THE

Q°THERMOLive

Classes 10 (Medical devices) · Quinn Medical, Inc.

ETHERMLive

Classes 10 (Medical devices) · Elepho Inc.

ETHERMLive

Classes 42 (Software / tech services (SaaS, design, hosting)) · Polaris Sensor Technologies, Inc.

Screen your own name

A fast first-pass screen against the USPTO federal register — sound-alikes, look-alikes, and same or related classes, in plain English. Free, no signup.

Screen a name — free · Start a free watch