Inogen
Inogen, Inc . engages in the development, manufacture, and marketing of portable oxygen concentrators used to deliver supplemental long-term oxygen therapy to patients suffering from chronic respiratory conditions. Its products consists of Inogen One G4 system, Inogen One G3 system, Inogen One G2 system, and Inogen at Home. The company was founded by Alison Perry, Alison Bauerlein, Brenton Taylor and Byron Myers on November 27, 2001 and is headquartered in Goleta, CA.