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Matthew Roelle
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Belmont, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Control of piston trajectory in a linear generator
Patent number
12,209,548
Issue date
Jan 28, 2025
Mainspring Energy, Inc.
Matthew Roelle
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Core synchronization for linear generators
Patent number
12,170,501
Issue date
Dec 17, 2024
Mainspring Energy, Inc.
Nick Schaeferle
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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
Control of piston trajectory in a linear generator
Patent number
11,739,705
Issue date
Aug 29, 2023
Mainspring Energy, Inc.
Matthew Roelle
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Auto-braking for an electromagnetic machine
Patent number
11,652,432
Issue date
May 16, 2023
Mainspring Energy, Inc.
Anthony Da Costa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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
Control of piston trajectory in a linear generator
Patent number
11,339,735
Issue date
May 24, 2022
Mainspring Energy, Inc.
Matthew Roelle
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Auto-braking for an electromagnetic machine
Patent number
11,211,885
Issue date
Dec 28, 2021
Mainspring Energy, Inc.
Anthony Da Costa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Control of piston trajectory in a linear generator
Patent number
11,053,876
Issue date
Jul 6, 2021
Mainspring Energy, Inc.
Matthew Roelle
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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
Control of piston trajectory in a free-piston combustion engine
Patent number
10,731,586
Issue date
Aug 4, 2020
Mainspring Energy, Inc.
Matthew Roelle
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Auto-braking for an electromagnetic machine
Patent number
10,715,068
Issue date
Jul 14, 2020
Mainspring Energy, Inc.
Anthony Da Costa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Control of piston trajectory in a free-piston combustion engine
Patent number
10,408,150
Issue date
Sep 10, 2019
EtaGen, Inc.
Matthew Roelle
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Auto-braking for an electromagnetic machine
Patent number
10,404,199
Issue date
Sep 3, 2019
EtaGen, Inc.
Anthony Da Costa
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
Control of piston trajectory in a free-piston combustion engine
Patent number
10,156,198
Issue date
Dec 18, 2018
EtaGen, Inc.
Matthew Roelle
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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
Control of piston trajectory in a free-piston combustion engine
Patent number
9,657,675
Issue date
May 23, 2017
EtaGen Inc.
Matthew Roelle
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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
Patents Applications
last 30 patents
Information
Patent Application
HIGH-POWER CORE SYSTEM
Publication number
20240297553
Publication date
Sep 5, 2024
Mainspring Energy, Inc.
Matthew Svrcek
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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
CONTROL OF PISTON TRAJECTORY IN A LINEAR GENERATOR
Publication number
20240125281
Publication date
Apr 18, 2024
Mainspring Energy, Inc.
Matthew Roelle
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
CORE SYNCHRONIZATION FOR LINEAR GENERATORS
Publication number
20240113644
Publication date
Apr 4, 2024
Mainspring Energy, Inc.
Nick Schaeferle
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
AUTO-BRAKING FOR AN ELECTROMAGNETIC MACHINE
Publication number
20230246576
Publication date
Aug 3, 2023
Mainspring Energy, Inc.
Anthony Da Costa
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
CONTROL OF PISTON TRAJECTORY IN A LINEAR GENERATOR
Publication number
20220381192
Publication date
Dec 1, 2022
Mainspring Energy, Inc.
Matthew Roelle
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
AUTO-BRAKING FOR AN ELECTROMAGNETIC MACHINE
Publication number
20220173682
Publication date
Jun 2, 2022
Mainspring Energy, Inc.
Anthony Da Costa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
CONTROL OF PISTON TRAJECTORY IN A LINEAR GENERATOR
Publication number
20210324812
Publication date
Oct 21, 2021
Mainspring Energy, Inc.
Matthew Roelle
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
CONTROL OF PISTON TRAJECTORY IN A FREE-PISTON COMBUSTION ENGINE
Publication number
20210010437
Publication date
Jan 14, 2021
Mainspring Energy, Inc.
Matthew Roelle
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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
AUTO-BRAKING FOR AN ELECTROMAGNETIC MACHINE
Publication number
20200328707
Publication date
Oct 15, 2020
Mainspring Energy, Inc.
Anthony Da Costa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
CONTROL OF PISTON TRAJECTORY IN A FREE-PISTON COMBUSTION ENGINE
Publication number
20190390623
Publication date
Dec 26, 2019
EtaGen, Inc.
Matthew Roelle
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
AUTO-BRAKING FOR AN ELECTROMAGNETIC MACHINE
Publication number
20190149074
Publication date
May 16, 2019
EtaGen, Inc.
Anthony Da Costa
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
CONTROL OF PISTON TRAJECTORY IN A FREE-PISTON COMBUSTION ENGINE
Publication number
20190063357
Publication date
Feb 28, 2019
EtaGen, Inc.
Matthew Roelle
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
CONTROL OF PISTON TRAJECTORY IN A FREE-PISTON COMBUSTION ENGINE
Publication number
20170350339
Publication date
Dec 7, 2017
EtaGen, Inc.
Matthew Roelle
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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
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
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