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Joseph B. Gehret
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Lynnfield, MA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Hybrid power system with electric generator and auxiliary power source
Patent number
11,936,327
Issue date
Mar 19, 2024
Tecogen Inc.
Joseph Gehret
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Dual stage internal combustion engine aftertreatment system using e...
Patent number
10,774,724
Issue date
Sep 15, 2020
Tecogen, Inc.
Ahmed F. Ghoniem
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Internal combustion engine controller
Patent number
9,702,306
Issue date
Jul 11, 2017
Tecogen Inc.
Joseph Gehret
G05 - CONTROLLING REGULATING
Information
Patent Grant
Assembly and method for reducing nitrogen oxides, carbon monoxide,...
Patent number
9,631,534
Issue date
Apr 25, 2017
Tecogen Inc.
Jean Roy
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Assembly and method for reducing ammonia in exhaust of internal com...
Patent number
9,470,126
Issue date
Oct 18, 2016
Tecogen Inc.
Joseph B. Gehret
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Assembly and method for reducing nitrogen oxides, carbon monoxide a...
Patent number
9,121,326
Issue date
Sep 1, 2015
Tecogen Inc.
Joseph B. Gehret
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Assembly and method for reducing nitrogen oxides, carbon monoxide a...
Patent number
8,578,704
Issue date
Nov 12, 2013
Tecogen, Inc.
Joseph B. Gehret
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Patents Applications
last 30 patents
Information
Patent Application
Hybrid Power System with Electric Generator and Auxiliary Power Source
Publication number
20220416700
Publication date
Dec 29, 2022
Tecogen Inc.
Joseph Gehret
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
ASSEMBLIES AND METHODS FOR REDUCING PARTICULATE MATTER, HYDROCARBON...
Publication number
20190234284
Publication date
Aug 1, 2019
Tecogen, Inc.
Ahmed F. Ghoniem
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
ASSEMBLIES AND METHODS FOR REDUCING PARTICULATE MATTER, HYDROCARBON...
Publication number
20180230886
Publication date
Aug 16, 2018
Tecogen, Inc.
Ahmed F. Ghoniem
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Dual Stage Internal Combustion Engine Aftertreatment System Using E...
Publication number
20180230883
Publication date
Aug 16, 2018
Ultra Emissions Technologies Limited
Ahmed F. Ghoniem
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Internal Combustion Engine Controller
Publication number
20170101942
Publication date
Apr 13, 2017
Tecogen Inc.
Joseph Gehret
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Assembly and Method for Reducing Ammonia in Exhausts of Internal Co...
Publication number
20150252700
Publication date
Sep 10, 2015
Tecogen Inc.
Joseph B. Gehret
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
ASSEMBLY AND METHOD FOR REDUCING NITROGEN OXIDES, CARBON MONOXIDE A...
Publication number
20140196438
Publication date
Jul 17, 2014
Tecogen, Inc.
Joseph B. Gehret
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
ASSEMBLY AND METHOD FOR REDUCING NITROGEN OXIDES, CARBON MONOXIDE,...
Publication number
20130004392
Publication date
Jan 3, 2013
Jean Roy
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
ASSEMBLY AND METHOD FOR REDUCING NITROGEN OXIDES, CARBON MONOXIDE A...
Publication number
20110265451
Publication date
Nov 3, 2011
Joseph B. Gehret
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Method for controlling internal combustion engine emissions
Publication number
20060277896
Publication date
Dec 14, 2006
Tecogen, Inc.
Joseph B. Gehret
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Engine driven power inverter system with cogeneration
Publication number
20050206167
Publication date
Sep 22, 2005
Tecogen, Inc.
Joseph B. Gehret
B60 - VEHICLES IN GENERAL