United States Air Force | Royal Air Force | United States Army Air Forces | Royal Canadian Air Force | Indian Air Force | United States Air Force Academy | Special Air Service | Fleet Air Arm | National Air and Space Museum | Royal Australian Air Force | Strategic Air Command | Delta Air Lines | Air Canada | Israeli Air Force | International Air Transport Association | Air Training Command | United States Army Air Corps | French Air Force | Air National Guard | Solar System | Edwards Air Force Base | Air Education and Training Command | Air France | Royal Naval Air Service | First Air Force | South African Air Force | Wright-Patterson Air Force Base | Air Ministry | Wacken Open Air | Civil Air Patrol |
One of Yellott's clients was Northrup, Inc. whose founder Leonard L. Northrup Jr. was introduced to solar technology by Yellott, and whose company went on to develop some of the first solar air conditioning systems and heliostats, under Yellott's on-going advice.
Sopogy produces a micro Concentrated solar system (microCSP) system based on parabolic trough which can be installed above building or homes, the heat can be used for water heating or solar air conditioning, a steam turbine can also be installed to produce electricity.