David L. Frohberg

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Peoria, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for utilizing a learned wastegate control sign...
- Patent number 6,012,289
- Issue date Jan 11, 2000
- Caterpillar Inc.
- Mitchel R. Deckard
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Air intake arrangement
- Patent number 5,136,988
- Issue date Aug 11, 1992
- Caterpillar Inc.
- David L. Frohberg
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS