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Douglas A. Doers
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Franklin, WI, US
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Patents Grants
last 30 patents
Information
Patent Grant
Two-cycle diesel engine configured for operation with high temperat...
Patent number
10,711,681
Issue date
Jul 14, 2020
DeltaHawk Engines, Inc.
Douglas A. Doers
F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information
Patent Grant
Two-cycle diesel engine configured for operation with high temperat...
Patent number
10,458,307
Issue date
Oct 29, 2019
DeltaHawk Engines, Inc.
Douglas A. Doers
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Crankcase pressure regulator for an internal combustion engine
Patent number
8,371,279
Issue date
Feb 12, 2013
DeltaHawk Engines, Inc.
Douglas A. Doers
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Lubricant-cooled and wristpin lubricating piston
Patent number
7,836,815
Issue date
Nov 23, 2010
DeltaHawk Engines, Inc.
Douglas A. Doers
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Internal combustion engine
Patent number
6,769,383
Issue date
Aug 3, 2004
DeltaHawk, Inc.
Douglas A. Doers
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Internal combustion engine
Patent number
6,622,667
Issue date
Sep 23, 2003
DeltaHawk, Inc.
Douglas A. Doers
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Patents Applications
last 30 patents
Information
Patent Application
Two-Cycle Diesel Engine Configured for Operation with High Temperat...
Publication number
20200291844
Publication date
Sep 17, 2020
DELTAHAWK ENGINES, INC.
Douglas A. Doers
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Two-Cycle Diesel Engine Configured for Operation with High Temperat...
Publication number
20200018220
Publication date
Jan 16, 2020
DELTAHAWK ENGINES, INC.
Douglas A. Doers
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Two-Cycle Diesel Engine Configured for Operation with High Temperat...
Publication number
20190120117
Publication date
Apr 25, 2019
DELTAHAWK ENGINES, INC.
Douglas A. Doers
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Single Input Engine Controller and System
Publication number
20180023489
Publication date
Jan 25, 2018
DELTAHAWK ENGINES, INC.
Dennis R. Webb
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
CRANKCASE PRESSURE REGULATOR FOR AN INTERNAL COMBUSTION ENGINE
Publication number
20100077972
Publication date
Apr 1, 2010
DELTAHAWK ENGINES, INC.
Douglas A. Doers
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
LUBRICANT-COOLED AND WRISTPIN LUBRICATING PISTON
Publication number
20070227350
Publication date
Oct 4, 2007
Douglas A. Doers
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Internal combustion engine
Publication number
20050235946
Publication date
Oct 27, 2005
Douglas A. Doers
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Lubricant-cooled and wristpin lubricating piston
Publication number
20050211089
Publication date
Sep 29, 2005
Douglas A. Doers
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Internal combustion engine
Publication number
20030106503
Publication date
Jun 12, 2003
DeltaHawk, Inc.
Douglas A. Doers
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES