The SOLAROOF Project was developed, designed, built, and tested to be a cost effective, integrated solar heating system for air and supported tension structure as well as a medium temperature solar collector system for commercial heating and cooling applications (US Patent 4,196,720 April 1980).

Expand also holds the patent on a new concept for sea water desalination. The concept was modeled and simulated to a prototype (US Patent 4,363,703, December 1982). In the implementation and commercialization phase Expand managed the design, construction, operation, and training Milestones of the "Solar Sea Water Desalination Plant coupled with a Hydroponic Plantation System." The plant was developed at the Institute of Gas Technology in Chicago and was built on the Mediterranean Coast of Egypt.

Scientists working for Expand developed a system for utilizing wasted heat to generate cooling cycles. This resulted in US patent #4,266,404.