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Adam Simpson
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San Francisco, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Energy storage and conversion in linear generators
Patent number
11,867,116
Issue date
Jan 9, 2024
Mainspring Energy, Inc.
Christopher Gadda
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Energy storage and conversion in linear generators
Patent number
11,578,646
Issue date
Feb 14, 2023
Mainspring Energy, Inc.
Christopher Gadda
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Energy storage and conversion in linear generators
Patent number
11,352,947
Issue date
Jun 7, 2022
Mainspring Energy, Inc.
Christopher Gadda
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Energy storage and conversion in free-piston combustion engines
Patent number
10,738,688
Issue date
Aug 11, 2020
Mainspring Energy, Inc.
Christopher Gadda
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
High-efficiency linear combustion engine
Patent number
10,221,759
Issue date
Mar 5, 2019
EtaGen, Inc.
Adam Simpson
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Energy storage and conversion in free-piston combustion engines
Patent number
10,190,490
Issue date
Jan 29, 2019
EtaGen, Inc.
Christopher Gadda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
High-efficiency linear combustion engine
Patent number
10,024,231
Issue date
Jul 17, 2018
EtaGen, Inc.
Adam Simpson
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Energy storage and conversion in free-piston combustion engines
Patent number
9,719,415
Issue date
Aug 1, 2017
EtaGen, Inc.
Christopher Gadda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
High-efficiency linear combustion engine
Patent number
9,567,898
Issue date
Feb 14, 2017
EtaGen, Inc.
Adam Simpson
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Linear free piston combustion engine with indirect work extraction...
Patent number
8,997,699
Issue date
Apr 7, 2015
EtaGen, Inc.
Matthew J. Roelle
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
High-efficiency linear combustion engine
Patent number
8,662,029
Issue date
Mar 4, 2014
EtaGen, Inc.
Adam Simpson
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
High-efficiency linear combustion engine
Patent number
8,453,612
Issue date
Jun 4, 2013
EtaGen, Inc.
Adam Simpson
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
High-efficiency two-piston linear combustion engine
Patent number
8,413,617
Issue date
Apr 9, 2013
EtaGen, Inc.
Adam Simpson
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
High-efficiency linear combustion engine
Patent number
8,402,931
Issue date
Mar 26, 2013
EtaGen, Inc.
Adam Simpson
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Patents Applications
last 30 patents
Information
Patent Application
ENERGY STORAGE AND CONVERSION IN LINEAR GENERATORS
Publication number
20240240586
Publication date
Jul 18, 2024
Mainspring Energy, Inc.
Christopher Gadda
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
ENERGY STORAGE AND CONVERSION IN LINEAR GENERATORS
Publication number
20230193817
Publication date
Jun 22, 2023
Mainspring Energy, Inc.
Christopher Gadda
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
ENERGY STORAGE AND CONVERSION IN LINEAR GENERATORS
Publication number
20220364502
Publication date
Nov 17, 2022
Mainspring Energy, Inc.
Christopher Gadda
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
ENERGY STORAGE AND CONVERSION IN FREE-PISTON COMBUSTION ENGINES
Publication number
20200400064
Publication date
Dec 24, 2020
Mainspring Energy, Inc.
Christopher Gadda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
HIGH-EFFICIENCY LINEAR COMBUSTION ENGINE
Publication number
20190178157
Publication date
Jun 13, 2019
EtaGen, Inc.
Adam Simpson
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
ENERGY STORAGE AND CONVERSION IN FREE-PISTON COMBUSTION ENGINES
Publication number
20190136757
Publication date
May 9, 2019
EtaGen, Inc.
Christopher Gadda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
High-Efficiency Linear Combustion Engine
Publication number
20180298814
Publication date
Oct 18, 2018
EtaGen, Inc.
Adam Simpson
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
ENERGY STORAGE AND CONVERSION IN FREE-PISTON COMBUSTION ENGINES
Publication number
20170306837
Publication date
Oct 26, 2017
EtaGen, Inc.
Christopher Gadda
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
HIGH-EFFICIENCY LINEAR COMBUSTION ENGINE
Publication number
20170241331
Publication date
Aug 24, 2017
EtaGen, Inc.
Adam Simpson
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
ENERGY STORAGE AND CONVERSION IN FREE-PISTON COMBUSTION ENGINES
Publication number
20160208686
Publication date
Jul 21, 2016
EtaGen, Inc.
Christopher Gadda
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
HIGH-EFFICIENCY LINEAR COMBUSTION ENGINE
Publication number
20160090908
Publication date
Mar 31, 2016
EtaGen, Inc.
Adam Simpson
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
HIGH-EFFICIENCY LINEAR COMBUSTION ENGINE
Publication number
20140130771
Publication date
May 15, 2014
EtaGen, Inc.
Adam Simpson
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
High-Efficiency Linear Combustion Engine
Publication number
20120235517
Publication date
Sep 20, 2012
EtaGen, Inc.
Adam Simpson
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
LINEAR FREE PISTON COMBUSTION ENGINE WITH INDIRECT WORK EXTRACTION...
Publication number
20120204836
Publication date
Aug 16, 2012
Matthew J. Roelle
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
HIGH-EFFICIENCY TWO-PISTON LINEAR COMBUSTION ENGINE
Publication number
20120126544
Publication date
May 24, 2012
Adam Simpson
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
HIGH-EFFICIENCY LINEAR COMBUSTION ENGNE
Publication number
20120125288
Publication date
May 24, 2012
Adam Simpson
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
HIGH-EFFICIENCY LINEAR COMBUSTION ENGINE
Publication number
20120125291
Publication date
May 24, 2012
Adam Simpson
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
HIGH-EFFICIENCY SINGLE-PISTON LINEAR COMBUSTION ENGINE
Publication number
20120126543
Publication date
May 24, 2012
Adam Simpson
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS