Air pollution has been a menace in recent years posing serious threats to environmental and social well being. Government, authorities and industry have been at the forefront to tackle air pollution with the help of policy reformation and technological innovation. The work in this book concentrates on looking into the innovation activity in last decade to understand technical breakthroughs and exploitation by industry in the field of Air Quality Control Systems (AQCS) and Environmental Control Services (ECS). The aim is to understand innovation activity in the technology domain and observe patterns in relation to diffusion of innovation in different jurisdictions. Innovation trends in the field of practice have been analyzed based upon the underlying principle that technology intensive companies perform research & development to innovate and thus patent it to obtain right of practice in different jurisdictions.The study has been conducted at a prominent multinational company active in air pollution control technology business and R&D. Various observations have been made based upon the behavior of industry to patent & protect.