YUCAIPA, Calif., April 21, 2010 (GLOBE NEWSWIRE) -- Ingen Technologies, Inc. (Pink Sheets:IGNT), an ISO Certified medical device manufacturer with an emerging new medical product line for the respiratory market worth an estimated $4 billion in the U.S. and $8 billion globally, today announced a new Group Purchasing Organization (“GPO”) contract with MediGroup Physician Services.