Jerry Lang – FFi Combustion Specialist and Technical Advisor Jerry has over 40 years of experience in the Oil and Petrochemical Industry. Recognized as one of the top two combustion experts in the world, Jerry consults with companies such as Chevron, Texaco, Shell, Exxon, and Mobil. He also holds 17 US patents, of which 13 are related to emissions. To date, over $850 million dollars of his patented technologies have been sold. For the past year, Jerry has been a technical expert and advisor for FFi.