John A. Konopka

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Feeding Hills, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Electronic controls for compression release engine brakes
- Patent number 5,967,115
- Issue date Oct 19, 1999
- Diesel Engine Retarders, Inc.
- John Konopka
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Electronic controls for compression release engine brakes
- Patent number 5,718,199
- Issue date Feb 17, 1998
- Diesel Engine Retarders, Inc.
- Haoran Hu
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Electronically controlled compression release engine brakes
- Patent number 5,537,975
- Issue date Jul 23, 1996
- Diesel Engine Retarders, Inc.
- Gheorghe Cosma
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Compression release engine brakes with electronically controlled, m...
- Patent number 5,479,890
- Issue date Jan 2, 1996
- Diesel Engine Retarders, Inc.
- Haoran Hu
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS