Homayoun Birangi

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Willoughby, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Gas concentration sensor and control for oxygen concentrator utiliz...
- Patent number 5,917,135
- Issue date Jun 29, 1999
- Invacare Corporation
- Gregory A. Michaels
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Closed-loop feedback control for oxygen concentrator
- Patent number 5,906,672
- Issue date May 25, 1999
- Invacare Corporation
- Gregory A. Michaels
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE