ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,857, issued on Nov. 11, was assigned to EcoTec Solutions Inc. (Colton, Calif.).
"Modular landfill gas measurement" was invented by Alan Vidal (Fontana, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system may include a flow valve coupled to a gas inlet of a landfill gas system and a pump coupled to the flow valve and configured to draw gas from the landfill gas system via the gas inlet. The system may further include an oxygen sensor comprising at least one laser configured to detect oxygen concentration in the gas, a carbon dioxide sensor comprising at least one infrared light source configured to detect carbon dioxide concentration in th...