 GOLETA, Calif.--BUSINESS WIRE--Inogen, Inc. NASDAQ: INGN, a medical technology company offering innovative respiratory products for use in the homecare setting, today reported financial results for the three- and twelve-month periods ended December 31, 2020. Fourth Quarter 2020 Highlights Total revenue of 74.0 million, down 6.3 from the same period in 2019, primarily due to the impacts of the COVID-19 pandemic Domestic business-to-business sales of 24.2 million, up 17.9 from the same pe 