Michael ROPPELT

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Edmonton, CA

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Patents Grantslast 30 patents

Information Patent Grant
Thermal-energy exchange and storage system
- Patent number 11,156,374
- Issue date Oct 26, 2021
- Michael Roppelt
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Semi-permeable expanding sleeve system for borehole pipe spreading...
- Patent number 10,570,711
- Issue date Feb 25, 2020
- Michael Roppelt
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
THERMAL-ENERGY EXCHANGE AND STORAGE SYSTEM
- Publication number 20190285292
- Publication date Sep 19, 2019
- Michael ROPPELT
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
SEMI-PERMEABLE EXPANDING SLEEVE SYSTEM FOR BOREHOLE PIPE SPREADING...
- Publication number 20190112901
- Publication date Apr 18, 2019
- Michael ROPPELT
- F24 - HEATING RANGES VENTILATING