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Mark Name	Description	Status
CLEARSIGN Filed on: 6/28/2021	Safety sensors, namely, flame sensors and flame detectors for burners; fire detectors in the nature of ignition detection systems comprised of ignition detectors and flame scanners; integrated pilot and flame detection systems comprised of gas and flame detectors and sensors f... read more...	ABANDONED - NO STATEMENT OF USE FILED 1/15/2024
CLEARSIGN Filed on: 7/7/2016	Electrical controllers for controlling electric fields in external combustion apparatuses; electrodes for applying electric fields in external combustion apparatuses; computer software that derives, optimizes, or generates waveforms for applying electric fields in external com... read more...	ABANDONED - NO STATEMENT OF USE FILED 3/25/2019
CLEARSIGN Filed on: 3/26/2015	Signal devices, namely, acoustic, optical and radio signal generators, electric warning lights, electric blinking warning lights and flashlights, electric warning signal pillars, buzzers and horns, namely, electric buzzers and electronic warning horns; sirens, bells, namely, s... read more...	CONTINUED USE NOT FILED WITHIN GRACE PERIOD, UN-REVIVABLE 3/3/2023
CLEARSIGN Filed on: 1/9/2014	Signal devices, namely, acoustic, optical and radio signal generators, electric warning lights, electric blinking warning lights and flashlights, electric warning signal pillars, buzzers and horns, namely, electric buzzers and electronic warning horns; sirens, bells, namely, s... read more...	IR CANCELLED; US REGISTRATION CANCELLED 5/8/2015
CLEARSIGN Filed on: 12/18/2012	Burners, namely, gas burners, coal burners, wood burners, fluidized beds, primary burners, and secondary burners; boilers, namely, furnace boilers, heating boilers, fixed boilers, power generation boilers, ship's boilers, and process heat boilers; furnaces; structural parts fo... read more...	CONTINUED USE AND INCONTESTIBILITY ACCEPTED 2/22/2021

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