Stephen G. Ehrman

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Indianapolis, IN, US

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Patents Grantslast 30 patents

Information Patent Grant
Integrated energy recovery base or roof-curb for air-conditioning unit
- Patent number 11,796,213
- Issue date Oct 24, 2023
- Stephen G Ehrman
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
Integrated Energy Recovery Base or Roof-curb for Air-conditioning Unit
- Publication number 20240003586
- Publication date Jan 4, 2024
- Stephen G. Ehrman
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Energy Recovery Device and Air Conditioning System Support Base
- Publication number 20230243546
- Publication date Aug 3, 2023
- Stephen Gerard Ehrman
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Cylindrical Air Conditioner and Conical Evaporator Coil
- Publication number 20220397289
- Publication date Dec 15, 2022
- Stephen G. Ehrman
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Integrated Energy Recovery Base or Roof-curb for Air-conditioning Unit
- Publication number 20210148598
- Publication date May 20, 2021
- Stephen G. Ehrman
- F24 - HEATING RANGES VENTILATING