David John Gretka II

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Dearborn, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Pressure relief valve assembly
- Patent number 11,959,556
- Issue date Apr 16, 2024
- DADCO, Inc.
- David John Gretka
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
PRESSURE RELIVE VALVE ASSEMBLY
- Publication number 20210018106
- Publication date Jan 21, 2021
- David John Gretka
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...