MESTEK. INC. logo

MESTEK. INC.

140 Marks
Corp.
First Filed:Oct 13, 1958Latest Filed:Jun 2, 2026Address:260 North Elm Street, Westfield, MA 01085, US

Portfolio Overview

Previous
14

Top Classes

Class 11
HVAC, Lighting & Kitchen Appliances
99(71%)
Class 6
Metal Building Materials & Hardware
14(10%)
Class 34
Smokers' Articles
12(9%)

TTAB Proceedings

Proceedings
6
As Plaintiff
1(17%)
As Defendant
5(83%)
Extensions of Time
7

Top Firms

Loading...

Trademark Activity Timeline(1981 – 2026)

Trademark Portfolio

154 results

(current & previous marks)

Refine by Mark/Description🔽
Filed
Registered
Last Activity
T
T
Trademark
Combined
PENDING
Owner:
Serial:99859410
Filed:Jun 2, 2026
Classes:11
Description: High efficiency heat pumps
T TRANSOM
T TRANSOM
Trademark
Combined
PENDING
Owner:
Serial:99859455
Filed:Jun 2, 2026
Classes:11
Description: High efficiency heat pumps
ROOMMATE
ROOMMATE
Trademark
Combined
PENDING
Owner:
Serial:99760537
Filed:Apr 13, 2026
Classes:11
Description: Heat pumps, namely, electric heat pumps
ROOMMATE THE PERFECT ROOMMATE DOES EXIST.
ROOMMATE THE PERFECT ROOMMATE DOES EXIST.
Trademark
Combined
PENDING
Owner:
Serial:99760445
Filed:Apr 13, 2026
Classes:11
Description: Heat pumps, namely, electric heat pumps
T TRANSOM
T TRANSOM
Trademark
Combined
PENDING
Owner:
Serial:99183041
Filed:May 13, 2025
Classes:11
Description: High efficiency heat pumps
FUTERA ZERO
FUTERA ZERO
Trademark
Word
PENDING
Owner:
Serial:98851144
Filed:Nov 13, 2024
Classes:11
Description: Electric boilers
ENCORE
ENCORE
Trademark
Word
ABANDONED
Owner:
Serial:98784058
Filed:Oct 3, 2024
Classes:11
Description: Condensing boilers
ENCORE FIRETUBE
ENCORE FIRETUBE
Trademark
Word
PENDING
Owner:
Serial:98643979
Filed:Jul 11, 2024
Classes:11
Description: Heat exchangers, namely, commercial condensing heat exchangers other than parts of machines
NOVUM
NOVUM
Trademark
Word
PENDING
Owner:
Serial:98497687
Filed:Apr 12, 2024
Classes:11
Description: Condensing gas-fired unit heaters
ROOMMATE
ROOMMATE
Trademark
Word
PENDING
Owner:
Serial:98194058
Filed:Sep 23, 2023
Classes:11
Description: Heat pumps, namely, electric heat pumps for indoor environmental conditioning requiring outdoor communication and exhaust
ENCORE
ENCORE
Trademark
Word
ABANDONED
Owner:
Serial:98071270
Filed:Jul 5, 2023
Classes:11
MESTEK AI
MESTEK AI
Trademark
Word
PENDING
Owner:
Serial:98043916
Filed:Jun 15, 2023
Classes:37, 40, 42
Description: Custom manufacturing of AI-assisted control systems, namely, AI-assisted electric control systems and assemblies in the HVAC field; Implementation of AI-assisted control systems, namely, installing AI-assisted electric control systems and assemblies in the HVAC field; AI; Designing of AI-assisted control systems, namely, AI-assisted electric control systems and assemblies in the HVAC field
MESTEK AI READY
MESTEK AI READY
Trademark
Word
PENDING
Owner:
Serial:98031236
Filed:Jun 7, 2023
Classes:37, 40, 42
Description: Custom manufacturing of AI-assisted control systems, namely, AI-assisted electric control systems and assemblies in the HVAC field; Implementation of AI-assisted control systems, namely, installing AI-assisted electric control systems and assemblies in the HVAC field; "AI READY"; Designing of AI-assisted control systems, namely, AI-assisted electric control systems and assemblies in the HVAC field
CONTINUUM
CONTINUUM
Trademark
Word
ABANDONED
Owner:
Serial:97739741
Filed:Jan 3, 2023
Classes:11
DESIGNLINE ELEGANCE
DESIGNLINE ELEGANCE
Trademark
Word
ABANDONED
Owner:
Serial:97459351
Filed:Jun 15, 2022
Classes:11
ON THE SPOT
ON THE SPOT
Trademark
Word
ABANDONED
Owner:
Serial:97416722
Filed:May 18, 2022
Classes:11
MATRIX
MATRIX
Trademark
Word
PENDING
Owner:
Serial:97347666
Filed:Apr 5, 2022
Classes:11
Description: Commercial heaters, namely gas fired commercial heaters
PRO-FAB
PRO-FAB
Trademark
Word
ABANDONED
Owner:
Serial:90768641
Filed:Jun 11, 2021
Classes:7
Description: Metal bending and forming machines, namely, plasma cutting machines, laser cutting machines, sheet metal bending machines, sheet metal shearing machines, and sheet metal rolling machines
PROFAB
PROFAB
Trademark
Word
ABANDONED
Owner:
Serial:90768591
Filed:Jun 11, 2021
Classes:7
Description: Metal bending and forming machines, namely, plasma cutting machines, laser cutting machines, sheet metal bending machines, sheet metal shearing machines, and sheet metal rolling machines
ENCORE
ENCORE
Trademark
Word
ABANDONED
Owner:
Serial:90730117
Filed:May 24, 2021
Classes:11
ENCORE
ENCORE
Trademark
Word
ABANDONED
Owner:
Serial:88675572
Filed:Oct 31, 2019
Classes:11
SUNSCAPE
SUNSCAPE
Trademark
Word
ABANDONED
Owner:
Serial:88503497
Filed:Jul 8, 2019
Classes:11
ZONE PAK
ZONE PAK
Trademark
Word
REGISTERED
Owner:
Serial:88409265
Filed:Apr 30, 2019
Classes:9
Registration:6197984
Registered:Nov 17, 2020
Description: Climate control systems consisting primarily of electric control panels and electric wiring, air-driven ventilation dampers, and HVAC piping
TORUS
TORUS
Trademark
Word
REGISTERED
Owner:
Serial:88403671
Filed:Apr 26, 2019
Classes:11
Registration:6070731
Registered:Jun 2, 2020
Description: Water heaters
OPTUM
OPTUM
Trademark
Word
REGISTERED
Owner:
Serial:88105197
Filed:Sep 5, 2018
Classes:11
Registration:6309403
Registered:Mar 30, 2021
Description: Heating and ventilation, namely, condensing unit heaters
REVITAL/LINE
REVITAL/LINE
Trademark
Combined
REGISTERED
Owner:
Serial:87712255
Filed:Dec 7, 2017
Classes:6
Registration:5651054
Registered:Jan 8, 2019
Description: Replacement parts for baseboard radiators, namely, baseboard heating covers made of metal; baseboard heating covers made of metal for new heating installations and for revision of heating installations
LINEL
LINEL
Trademark
Word
REGISTERED
Owner:
Serial:87163206
Filed:Sep 7, 2016
Classes:2
Registration:5419160
Registered:Mar 6, 2018
Description: Paints | metal skylights, doors of metal; architectural products, namely, metal partition of building | non-metal skylights; architectural products, namely, non-metal window frames; architectural products, namely, glass windows; architectural products, namely, non-metal doors | [ architectural products, namely, furniture partitions ]
FEEL THE DIFFERENCE
FEEL THE DIFFERENCE
Service Mark
Word
REGISTERED
Owner:
Serial:87042795
Filed:May 19, 2016
Classes:42
Registration:5438857
Registered:Apr 3, 2018
Description: Design for others in the field of commercial and industrial air conditioning systems
FEEL THE DIFFERENCE
FEEL THE DIFFERENCE
Trademark
Word
REGISTERED
Owner:
Serial:87037825
Filed:May 16, 2016
Classes:11
Registration:5351391
Registered:Dec 5, 2017
Description: Apparatus for heating, cooling and air conditioning, parts and accessories therefore, namely, electric heating fans, hot-air space heaters, active chilled beam apparatus, namely, active chilled beam HVAC units, air conditioners and parts thereof
AMERIPRENE
AMERIPRENE
Trademark
Word
REGISTERED
Owner:
Serial:86700824
Filed:Jul 22, 2015
Classes:17
Registration:5050991
Registered:Sep 27, 2016
Description: Cellular rubber, namely, closed cell and synthetic cellular rubber and rubber-like materials for seals, gaskets and sheeting
NEXUS
NEXUS
Trademark
Word
REGISTERED
Owner:
Serial:86593136
Filed:Apr 10, 2015
Classes:11
Registration:5050637
Registered:Sep 27, 2016
Description: Heaters in the nature of finned radiator elements, namely, electric radiators for heating buildings, structural enclosures and structural fittings and parts therefor, gas fired space heaters, unit heaters, namely, electric space heaters and rooftop heating and cooling systems, namely, HVAC units for rooftops
SOLSTICE
SOLSTICE
Trademark
Word
REGISTERED
Owner:
Serial:86560613
Filed:Mar 11, 2015
Classes:11
Registration:4875968
Registered:Dec 22, 2015
Description: Heat pumps for HVAC installation
FLEXCORE
FLEXCORE
Trademark
Word
REGISTERED
Owner:
Serial:86523043
Filed:Feb 3, 2015
Classes:11
Registration:4956997
Registered:May 10, 2016
Description: Water heaters, namely, water heaters and boiler units
TRIDENT
TRIDENT
Trademark
Word
ABANDONED
Owner:
Serial:86523064
Filed:Feb 3, 2015
Classes:11
DESIGNLINE ELEGANCE
DESIGNLINE ELEGANCE
Trademark
Word
CANCELLED
Owner:
Serial:86415794
Filed:Oct 6, 2014
Classes:11
Registration:4739062
Registered:May 19, 2015
Description: Parts for radiators for residential use, namely, finned radiator elements, enclosures, and structural and fitted parts and fittings therefore
XYNERGY
XYNERGY
Trademark
Word
CANCELLED
Owner:
Serial:86410301
Filed:Sep 30, 2014
Classes:11
Registration:4844099
Registered:Nov 3, 2015
RBI INTERNATIONAL
RBI INTERNATIONAL
Trademark
Word
CANCELLED
Owner:
Serial:86129343
Filed:Nov 26, 2013
Classes:11
Registration:4874950
Registered:Dec 22, 2015
Description: "INTERNATIONAL"
CELSIOR
CELSIOR
Trademark
Word
CANCELLED
Owner:
Serial:86124413
Filed:Nov 20, 2013
Classes:11
Registration:4689730
Registered:Feb 17, 2015
ABI
ABI
Trademark
Word
REGISTERED
Owner:
Serial:86017580
Filed:Jul 23, 2013
Classes:11
Registration:4571034
Registered:Jul 22, 2014
Description: Ventilation and heating equipment, namely, louvers, ventilators for air movement, and dampers, namely, control devices used in air ducts to regulate the flow of air
AIR BALANCE
AIR BALANCE
Trademark
Word
REGISTERED
Owner:
Serial:86017612
Filed:Jul 23, 2013
Classes:11
Registration:4887505
Registered:Jan 19, 2016
Description: Commercial ventilation and heating equipment, namely, metal louvers, metal ventilators for providing air flow, and metal dampers, namely, metal control devices used in air ducts to regulate the air flow, excluding for use in ionization apparatuses and air filters; "AIR"
EZ CORNER
EZ CORNER
Trademark
Word
ABANDONED
Owner:
Serial:85938168
Filed:May 21, 2013
Classes:6
Description: "CORNER"
EZ SCREW
EZ SCREW
Trademark
Word
ABANDONED
Owner:
Serial:85938122
Filed:May 21, 2013
Classes:6
Description: "SCREW"
NATURALITE
NATURALITE
Trademark
Word
CANCELLED
Owner:
Serial:85937958
Filed:May 21, 2013
Classes:6
Registration:5223408
Registered:Jun 13, 2017
VERSALITE
VERSALITE
Trademark
Word
ABANDONED
Owner:
Serial:85937936
Filed:May 21, 2013
Classes:6
VISTAWALL
VISTAWALL
Trademark
Word
ABANDONED
Owner:
Serial:85937908
Filed:May 21, 2013
Classes:6
VALUEPLUS2
VALUEPLUS2
Trademark
Word
REGISTERED
Owner:
Serial:85832345
Filed:Jan 25, 2013
Classes:7
Registration:4441467
Registered:Nov 26, 2013
Description: Metal bending and forming machines, namely, machines for bending and forming metal blanks
EZ CONNECTOR
EZ CONNECTOR
Trademark
Combined
REGISTERED
Owner:
Serial:85824559
Filed:Jan 16, 2013
Classes:6
Registration:4602241
Registered:Sep 9, 2014
Description: Heating and cooling system comprised of metal parts, namely, a corner flange for joining ducts
EZ CONNECTOR
EZ CONNECTOR
Trademark
Word
REGISTERED
Owner:
Serial:85823308
Filed:Jan 15, 2013
Classes:6
Registration:4602236
Registered:Sep 9, 2014
Description: Heating and cooling system comprised of metal parts, namely, a corner flange for joining ducts; "CONNECTOR"
XCELON
XCELON
Trademark
Word
CANCELLED
Owner:
Serial:85823288
Filed:Jan 15, 2013
Classes:11
Registration:4637743
Registered:Nov 11, 2014
COMBO CORNER
COMBO CORNER
Trademark
Word
ABANDONED
Owner:
Serial:85807372
Filed:Dec 20, 2012
Classes:6
EZ HANGER
EZ HANGER
Trademark
Word
CANCELLED
Owner:
Serial:85807328
Filed:Dec 20, 2012
Classes:6
Registration:4602188
Registered:Sep 9, 2014
Description: "HANGER"
EZ HANGER
EZ HANGER
Trademark
Combined
CANCELLED
Owner:
Serial:85807349
Filed:Dec 20, 2012
Classes:6
Registration:4614416
Registered:Sep 30, 2014
Description: "HANGER"
EZ HANGER SYSTEM
EZ HANGER SYSTEM
Trademark
Word
CANCELLED
Owner:
Serial:85807318
Filed:Dec 20, 2012
Classes:6
Registration:4602187
Registered:Sep 9, 2014
Description: "HANGER SYSTEM"
SHIELD
SHIELD
Trademark
Combined
CANCELLED
Owner:
Serial:85680553
Filed:Jul 18, 2012
Classes:11
Registration:4518484
Registered:Apr 22, 2014
DESIGNLINE ELEGANCE
DESIGNLINE ELEGANCE
Trademark
Word
ABANDONED
Owner:
Serial:85672900
Filed:Jul 10, 2012
Classes:11
DESIGNLINE SYNERGY
DESIGNLINE SYNERGY
Trademark
Word
REGISTERED
Owner:
Serial:85672856
Filed:Jul 10, 2012
Classes:11
Registration:4448626
Registered:Dec 10, 2013
Description: Parts for radiators for residential use, namely, finned radiator elements, enclosures, and structural and fitted parts and fittings therefore
DESIGNLINE THERMAQUIET
DESIGNLINE THERMAQUIET
Trademark
Word
CANCELLED
Owner:
Serial:85672763
Filed:Jul 10, 2012
Classes:11
Registration:4422801
Registered:Oct 22, 2013
DESIGNLINE
DESIGNLINE
Trademark
Word
REGISTERED
Owner:
Serial:85671953
Filed:Jul 9, 2012
Classes:11
Registration:4422799
Registered:Oct 22, 2013
Description: Parts for radiators for residential use, namely, finned radiator elements, enclosures, and structural and fitted parts and fittings therefor
AIRCELL
AIRCELL
Trademark
Word
CANCELLED
Owner:
Serial:85608809
Filed:Apr 26, 2012
Classes:11
Registration:4360024
Registered:Jul 2, 2013
LION
LION
Trademark
Word
ABANDONED
Owner:
Serial:85598458
Filed:Apr 16, 2012
Classes:7
LION MACHINERY
LION MACHINERY
Trademark
Word
ABANDONED
Owner:
Serial:85598444
Filed:Apr 16, 2012
Classes:7
Description: "MACHINERY"
SMART PAK
SMART PAK
Trademark
Word
CANCELLED
Owner:
Serial:77943364
Filed:Feb 24, 2010
Classes:6
Registration:4354271
Registered:Jun 18, 2013
Description: Ventilating ducts of metal
THERMA PAK
THERMA PAK
Trademark
Word
CANCELLED
Owner:
Serial:77943454
Filed:Feb 24, 2010
Classes:11
Registration:4354272
Registered:Jun 18, 2013
Description: Heating units, namely, gas boilers
TURBO PILOT
TURBO PILOT
Trademark
Word
ABANDONED
Owner:
Serial:77943475
Filed:Feb 24, 2010
Classes:11
Description: Heating units, namely, electronic burner ignition device sold as component parts of boilers
ZONE PAK
ZONE PAK
Trademark
Word
CANCELLED
Owner:
Serial:77943435
Filed:Feb 24, 2010
Classes:9
Registration:4329560
Registered:Apr 30, 2013
Description: Climate control systems consisting primarily of electric control panels and electric wiring, air-driven ventilation dampers, and HVAC piping
WALL-FIN
WALL-FIN
Trademark
Word
REGISTERED
Owner:
Serial:77692718
Filed:Mar 17, 2009
Classes:11
Registration:3861622
Registered:Oct 12, 2010
Description: Baseboard heaters, namely, hydronic baseboard finned tube heaters and convection heating equipment, namely, radiators
EXPERIENCE BASED INNOVATION
EXPERIENCE BASED INNOVATION
Service Mark
Word
REGISTERED
Owner:
Serial:77686126
Filed:Mar 9, 2009
Classes:37
Registration:3975045
Registered:Jun 7, 2011
Description: Installation and servicing of HVAC components, namely, baseboards, boilers, gas fired heating units, kick space heaters and ductwork, for residential and commercial applications
ONEX
ONEX
Trademark
Word
CANCELLED
Owner:
Serial:77511321
Filed:Jun 30, 2008
Classes:11
Registration:3764248
Registered:Mar 23, 2010
SMARTCYCLE
SMARTCYCLE
Trademark
Combined
CANCELLED
Owner:
Serial:77491675
Filed:Jun 5, 2008
Classes:9
Registration:3735736
Registered:Jan 12, 2010
Description: "SMART CYCLE"
SMARTCYCLE
SMARTCYCLE
Trademark
Word
CANCELLED
Owner:
Serial:77491723
Filed:Jun 5, 2008
Classes:9
Registration:3671179
Registered:Aug 18, 2009
SIERRA
SIERRA
Trademark
Word
REGISTERED
Owner:
Serial:77484202
Filed:May 27, 2008
Classes:11
Registration:3590381
Registered:Mar 17, 2009
Description: HVAC components for heating and cooling large scale commercial and industrial applications, namely, direct and indirect evaporation air cooling units and gas direct-fired air heating units
SIERRA FRESH AIR SYSTEMS
SIERRA FRESH AIR SYSTEMS
Trademark
Combined
REGISTERED
Owner:
Serial:77484241
Filed:May 27, 2008
Classes:11
Registration:3590382
Registered:Mar 17, 2009
Description: HVAC components for heating and cooling large scale commercial and industrial applications, namely, direct and indirect evaporation air cooling units and gas direct-fired air heating units
GARAGEGUY
GARAGEGUY
Trademark
Word
CANCELLED
Owner:
Serial:77459304
Filed:Apr 28, 2008
Classes:11
Registration:3709648
Registered:Nov 10, 2009
GARAGEGUY
GARAGEGUY
Trademark
Combined
CANCELLED
Owner:
Serial:77459640
Filed:Apr 28, 2008
Classes:11
Registration:3785405
Registered:May 4, 2010
APPLIED AIR
APPLIED AIR
Trademark
Word
REGISTERED
Owner:
Serial:77441294
Filed:Apr 7, 2008
Classes:11
Registration:3671606
Registered:Aug 25, 2009
Description: Heating and cooling equipment, namely, industrial direct and indirect fired heaters for heating installations, ventilators for heating, air conditioning units, namely package DX and split system DX comprised primarily of cooling coils, and chilled water air conditioning units
APPLIED AIR
APPLIED AIR
Trademark
Combined
REGISTERED
Owner:
Serial:77441358
Filed:Apr 7, 2008
Classes:11
Registration:3671607
Registered:Aug 25, 2009
Description: Heating and cooling equipment, namely, industrial direct and indirect fired heaters for heating installations, ventilators for heating, air conditioning units, namely, package DX and split system DX comprised primarily of cooling coils, and chilled water air conditioning units
KNOW SOMETHING MORE
KNOW SOMETHING MORE
Service Mark
Word
CANCELLED
Owner:
Serial:77406228
Filed:Feb 26, 2008
Classes:35
Registration:3588668
Registered:Mar 10, 2009
RAY
RAY
Trademark
Word
ABANDONED
Owner:
Serial:77365387
Filed:Jan 7, 2008
Classes:11
RAY
RAY
Trademark
Combined
ABANDONED
Owner:
Serial:77365286
Filed:Jan 7, 2008
Classes:11
HEATNET ON BOARD
HEATNET ON BOARD
Trademark
Combined
CANCELLED
Owner:
Serial:77320144
Filed:Nov 2, 2007
Classes:9
Registration:3528795
Registered:Nov 4, 2008