visit our corporate sitehere you find information about press investor relations careers corporate responsibility and clean technology . linde s hydrogen solutions for a zero emission future hydrogen as an eco friendly flexible energy carrier sits pride of place in linde s clean technology portfolio . it s nothing new to us in fact we have over 100 years of experience working with the gas . during the course of the last 25 years however we have ramped up our efforts in using hydrogen as a fuel . interim report h1 2016 online version corporate site linde ag industrial gases engineering & healthcare visit our business sitesfind out more about our local gases engineering and healthcare business collaborate.innovate.deliver . the linde group is a world leading gases and engineering company with a rich and sophisticated technology and service portfolio . regardless of your size of industry this integrated business model brings you the benefits of a one stop offering and synergised know how . linde healthcare qi services qi pronounced key describes a concept whereby linde healthcare is developing and offering customized services and packages to healthcare facilities . the qi service offerings include outsourcing solutions where linde healthcare can take full responsibility for on site management of gases devices and related activities . members of the linde group business site